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An equation and the first step in its solution are shown: Equation: x2 + 8x - 9 = 0 Step 1: x2 + 8x +____ = 9+____ What number should be put in the____ to solve the equation by the method of completing
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An equation and the first step in its solution are shown: Equation: x2 + 8x - 9 = 0

Step 1: x2 + 8x +____ = 9+____
What number should be put in the____ to solve the equation by the method of completing the square?
A. 16
B. 12
C. 8
D. 4​

User Israel Fonseca
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1 Answer

6 votes
Answer- A-16

Because when doing completing the square, you divide the coefficient of x by 2, which is 4, and the square it which is 16
User Liangliang Zheng
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