Question

Write a pair of integers whose product is – 15 and whose difference is 8.

Answer 1

Answer:

‌‌‌ let the two pair of integer is -5,-3

then, -5 ×-3 = -15

and difference is -5 -3 = 8

Answer 2

Step-by-step explanation:

Let the pair of integers be x,y.

x y = -15

x - y= 8

x = y + 8

sub this in 1st equation.

so y^2 + 8y + 15 = 0

=> y^2 +3y + 5y + 15 = 0

=> y(y + 3)+5(y+3)=0

=> (y+3)(y+5)=0

y= -3 , -5