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

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17-12-2020
Mathematics

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

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diazkatherine864 diazkatherine864 · Answer 1 · 2020-12-17T17:46:28+01:00

diazkatherine864 diazkatherine864

17-12-2020

Answer:

Solve x2 + 12x = –20 by completing the square.Add to both sides of the equation. The value of in this equation is 36Write the left side of the equation as a binomial squared. The left side of the equation becomes (x+6)2.Use the square root property of equality.Isolate the variable: x = -10 and -2

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