Question

The product of two numbers is -15 and sum is 8 find the two nnumbers

Answer 1

Answer:

let the first no. be x

so, another no. = 8-x

A/Q , x * (8-x) = -15

8x - x2 = -15

x2-8x-15 =0

x2 -3x-5x-15= 0

x(x-3) -5(x-3)

(x-3)(x-5)

hence the no. can be 3 or 5

and if its 3 then y = 5

or if its 5 then y= 3