# Multiplies to _ and adds to _ calculator

If you have the sum of two numbers as well as the product those numbers, you can use this online calculator to calculate the actual numbers for you: This is especially useful for factoring trinomials, such as x2+7x+12, by entering the coefficients into the calculator. For example, if you make X*Y=12 and X+Y=7, then you find that X=4 and Y=3. You can then rewrite the trinomial in its factored form, (X+4)(X+3).

If you need any help, simply leave a comment below and I’ll see what I can do.

### Timtech

1. seth stClaire April 24, 2018 @ 12:36 PM

what multiplies to make 15 and adds up to 18

• LONDON October 22, 2019 @ 7:31 PM

2. Harly April 24, 2018 @ 10:52 PM

Are there any two numbers that multiply to 7 and add to 0? It’s probably an easy answer but I’m just not good at math.

• Timtech October 14, 2019 @ 12:28 PM

No, there aren’t. Think about it like this:

Any two numbers that add to zero must be equal, but opposite in sign. For example, 2 and -2, 3 and -3, etc. One of them will be positive, and the other will be negative.

Thus, when you multiply these numbers together, you will never get a positive answer, since the product of a positive and a negative number is always negative.

3. Idk April 26, 2018 @ 11:18 AM

What adds to be -62 and multiplies to be -560

4. Perry April 30, 2018 @ 10:52 PM

what multiplies to 8 and adds to 5

5. Ibraheem Riaz May 3, 2018 @ 7:45 AM

What two numbers add up to 37 and multiply to -24?

6. Hilary May 3, 2018 @ 9:37 PM

What adds to get 7 and multiplies to get -270

7. Emma May 10, 2018 @ 9:53 AM

My problem is 12w^2+18w-84
an we are doing the slide divide bottoms up ( i hope you know what that is )
but when we slide we take 12 * -84 to get -1008 an the we have to find two numbers to add to 18 an multiply to get -1008 what are they?
THANK YOUUUU

• Timtech January 10, 2019 @ 8:44 PM

They are 42 and -24. You can use the calculator in the post to do these calculations automatically.

8. Lincoln Haynes May 14, 2018 @ 9:45 PM

Are there any numbers that add to 9 but multiply to 8???

• Timtech October 14, 2019 @ 12:31 PM

Yeah, 8 + 1 = 9 and 8 * 1 = 8.

9. Aidan May 21, 2018 @ 8:50 AM

HI lmao I like your minecraft pic. Not bad bro. I also play minecraft

• Timtech October 14, 2019 @ 12:32 PM

Hi! Minecraft is fun, but I barely play anymore. I prefer the older versions.

10. lulupoo June 18, 2018 @ 7:40 AM

r u stupid

11. GENJI June 25, 2018 @ 10:16 PM

what 2 no. add to 17 and multiply to 66

• Timtech October 14, 2019 @ 12:35 PM

Think about all the pairs of numbers (factors) that multiply to make 66. We have 1 * 66 (obviously), and also 2 * 33, 3 * 22, and 6 * 11. When you look at this list, you can see that 6 + 11 = 17.

12. Jane August 8, 2018 @ 6:48 AM

What to multiply to 60 to become 250

13. maggie August 15, 2018 @ 11:19 PM

what numbers multiply to negative three and add to negative four

14. Cleo August 23, 2018 @ 10:54 PM

What multiplies to 12 but adds to 2

15. Aidan Callaghan September 6, 2018 @ 7:51 AM

What adds to 1/15 and multiplies to -2/15

16. Becky September 11, 2018 @ 10:52 PM

What numbers multiply to give you -10 and add to give you 5? and what numbers multiply to give you 12 and add to give you -12?

17. Joshua September 20, 2018 @ 8:24 PM

Multiplies to give 2,adds to give 4

18. vesaun September 25, 2018 @ 10:35 PM

what two numbers add to -1 and multiply to -30

• Timtech October 14, 2019 @ 12:38 PM

Think about the factors of 30: (1 30) (2 15) (3 10) (5 6)

Now consider that 5 * -6 = -30 and 5 + -6 = -1

Or, you can just use the calculator included in the post.

19. nunya October 8, 2018 @ 11:14 AM

what multiplies to 2 and adds to 0

• Timtech October 14, 2019 @ 12:40 PM

This is impossible; in order for two numbers to add to zero, one must be positive and one must be negative. When you multiply a positive and a negative number, you will always get a negative answer.

20. Ashleigh October 10, 2018 @ 5:41 PM

What multiplies to 2.5 but adds to 6

21. bossjones777 November 14, 2018 @ 9:07 PM

what number multiplies to 12.5 and adds to 5

22. Daynel thomas November 18, 2018 @ 3:34 PM

What to numbers multiply to -6 and add to give 5

• Timtech October 14, 2019 @ 12:42 PM

Consider that 1 * 6 = 6, and 2 * 3 = 6. Now, one of these numbers must be negative, so that you can get -6.

2-3 = 5, nope. 3-2 = 5, nope. 1-6 = 5, nope. 6-1 = 5, yup. Therefore the numbers are 6 and -1.

23. Jonathan Cole November 20, 2018 @ 5:11 PM

What two numbers multiply to -150 add up to 19

24. Cheech November 26, 2018 @ 3:07 PM

What multiplies to 0.3 and adds to 3.17?

25. Dumbblonde December 17, 2018 @ 7:43 PM

What multiplies to get -75 but adds to +22

• Timtech October 14, 2019 @ 12:46 PM

Think about all of the possible ways to get 75 by multiplying: (1 * 75), (3 * 25), and (5 * 15). Of course, one of these numbers must be negative, so that you can multiply to get -75.

Now, the numbers must add up to 22. We can see that 25 is fairly close to 22. In fact, 25 minus 3 gives us 22. Therefore we know that 25 * -3 = -75 and 25 + -3 = 22.

26. someone March 20, 2019 @ 10:39 PM

what multiplies to 25 and adds to 1

27. Amaya July 9, 2019 @ 9:47 PM

What adds to 4, but multiplies to 0

• Timtech October 14, 2019 @ 12:50 PM

In order for two numbers to multiply to zero, at least one of those numbers must be zero. Therefore, you can see that your other number must be four.

28. slovabourE August 1, 2019 @ 2:44 PM

It is english language possible to write? Sorry for my proor eng

29. Allyssa October 18, 2019 @ 7:33 PM

What multiplies to get negative 12 and adds to get negative 2

• Timtech October 25, 2019 @ 1:26 PM

The calculator will approximate the decimal values for you (approximately 2.6 and -4.6).

If you find the exact results by hand, you will get -1 + √13 and -1 – √13.

30. Hannah October 31, 2019 @ 4:42 PM

What multiplies you get -12 and adds to get 7

31. Annag November 6, 2019 @ 12:14 PM

What multiplies to 13 and adds to 6? negative/positive/whatever

• Timtech November 8, 2019 @ 1:08 PM

You probably already realized that no two real numbers can multiply to 13 while still adding up to 6. You are looking for the complex numbers 3+2j and 3-2j, where j represents the imaginary unit. You can check these numbers like so:

( 3+2j ) + ( 3-2j ) = ( 6+0j ) = 6
( 3+2j ) * ( 3-2j ) = ( 9 + 6j – 6j + 4) = 13