Question

What is the solution set of the equation x2 + 2x – 15 = 0?

Answer 1

B

Explanation:

; factor the left side of the equation

; (x−3) (x+5) = 0

set factors equal to 0

x − 3 = 0

or

x + 5 = 0

; so, x = 3 or x = −5

Answer 2

( x − 3 ) ( x + 5 )

Explanation:

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