AnswersFL-1200710-Mathematics for College Algebra ASolving Quadratic Equations: Square Root Property

Solving Quadratic Equations: Completing the Square Answers

5 verified answers
81957

Solve x2 + 12x = –20 by completing the square.

Answers:
Add to both sides of the equation. The value of in this equation is .:36
Write the left side of the equation as a binomial squared. The left side of the equation becomes ()2.:x + 6
Isolate the variable: x =:–10 or –2
81958

x + 3✔ x + 6x + 10x + 12

A
x + 3
B
✔ x + 6
C
x + 10
D
x + 12
81959

–4 or 4–6 or 62 or 10✔ –10 or –2

A
–4 or 4
B
–6 or 6
C
2 or 10
D
✔ –10 or –2

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