What multiplies to -1920 and adds to 56?

Question

Elnora Hickle · Answer

-1864

Wiki User · Answer

To solve this you need to set up the following two equations:  xy=-1920 (since the two numbers multiply to -1920)  x+y=56 (since they add to 56)  In the first equation, solve for x. We have x=-1920/y  Substitute this value for y in the other equation.  (-1920/y)+y=56  Multiply both sides by y  -1920 + y^2 = 56y  Subtract 56y from both sides.  y^2 - 56y - 1920 = 0  Solve this by completing the square or using the quadratic formula to get that y is equal to 80 or -24. You will see that 80-24=56 and (80)(-24)= -1920  I will solve all your math problems with detailed solutions. Check my profile for more information.

What multiplies to -1920 and adds to 56?

What else can I help you with?

What adds to 10 and multiplies to -56?

What adds to 68 and multiplies to -672?

What multiplies into 20 but adds up to 76?

What adds to get 5 and multiplies to get -4?

What multiplies to 20 and adds to 6?

What multiplies to -60 but adds to 4?

What multiplies to 3136 and adds to 112?

What multiplies to 504 and adds 65?

What adds to 10 and multiplies to -56?

What multiplies to 56 but adds to 26?

What adds to 68 and multiplies to -672?

What multiplies to -18 and adds up to -9?

What multiplies into 20 but adds up to 76?

What adds to get -7 and multiplies to get -20?

What multiplies to 48 and adds to be 8?

What multiplies into 630 but adds up to 56?

What multiplies to 18 and adds to 3?

Resources

Top Categories

Product

Company