Complete the square to solve the equation below. x^2+2x-9=15
2 answers:
Answer:
15
Step-by-step explanation:
Answer:
Step-by-step explanation:
x^2+2x-9=15
x^2+2x=24
x^2+2x+1=24+1
(because what you do to one side you do to the other) ^
(x+1)^2=25
(x+1)^2 -25=0
(25 is a perfect square)
(x+1-5)(x+1+5)
(x-4)(x+6)
x=4,-6
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Answer:
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Step-by-step explanation:
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Answer:
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Step-by-step explanation: