13hlpatterson 13hlpatterson

23-11-2020
Mathematics

contestada

Find the solution(s) of the quadratic equation x2 + 2x -15 = 0.
A)x= -5,3
B)x= 5,3
C)x= -5 -3
D)x= 5,-3

Respuesta :

maeterence1234 maeterence1234

23-11-2020

Answer:

The answer is A.

Step-by-step explanation:

Let's solve your equation step-by-step.

x2+2x−15=0

Step 1: Factor left side of equation.

(x−3)(x+5)=0

Step 2: Set factors equal to 0.

x−3=0 or x+5=0

x=3 or x=−5

Answer:

x=3 or x=−5

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