Question

What multiplies to give you 15 and adds to give you -8?

Answer 1

Answer:

Explanation:
Take one number as x.

Given,
x + ? = -8
? = - 8 - x

So, second number is -8 - x

Now,
x ( -8 - x) = 15
-8x - x² = 15
-8x - x² - 15 = 0
-x² - 8x - 15 = 0
(-x² - 3x) + (5x - 15) = 0
x (-x - 3) + 5 (-x - 3) = 0
(- x - 3)(x + 5) = 0

•°• x = -3 & x = -5

=》The required numbers are - 3 & - 5.



Hope it helps ⚜

Answer 2

-5 and -3 because if you multiply both the answer is 15 and if you plus both the answer is -8.