Question

one of the solutions to x2 − 2x − 15 = 0 is x = −3. what is the other solution? x = −5 x = −1 x = 1 x = 5

Answer 1

5

Explanation:

5

Answer 2

`x^(2) -2x-15=0`
P(-15)
s(-2)

`x^(2) -5x+3x-15`
=x(x-5)+3(x-5)
=(x+3)(x-5)
x=5