3 years ago

Ms. Scarborough solved x^2+6x-7 by completing the square in the table below. Identify the missing steps.

1 answer:

8 0

Answer 1: Move the -7 over to the right side of the problem.
Answer 2: $x^2 + 6x + 9 = 7+9$
Answer 3: $(x+3)^2 = 16$
Answer 4: Use the square root for both sides of the equation.
Answer 5: x = -3 ± 4 = 1, -7 --> x = 1, -7

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