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Complete the square to solve f(x)=x^2+6x-7​
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1 vote
Complete the square to solve
f(x)=x^2+6x-7​

User Lost Crotchet
by
5.3k points

1 Answer

3 votes

Answer: x = 1 and x = -7

Step-by-step explanation:
x^2 + 6x - 7 = 0
x^2 + 6x + 3^2 = 7 + 3^2
(x + 3)^2 = 16
x + 3 = +-4 (square both sides)

x + 3 = 4
x = 1

x + 3 = -4
x = -7
User SemanticBeeng
by
4.8k points
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