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

add (startfraction b over 2 endfraction) square...

Mathematics, 07.11.2019 18:31, maggie123456751

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

add (startfraction...

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

add (startfraction b over 2 endfraction) squared to both sides of the equation. the value of (startfraction b over 2 endfraction) squared in this equation is .

write the left side of the equation as a binomial squared. the left side of the equation becomes ()2.

use the square root property of equality.

isolate the variable: x =

add (startfraction b over 2 endfraction) squared to both sides of the equation. the value of (startfraction b over 2 endfraction) squared in this equation is .

write the left side of the equation as a binomial squared. the left side of the equation becomes ()2.

use the square root property of equality.

isolate the variable: x =

Answers: 1

Mathematics, 21.06.2019 19:30, tgentryb60

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Answers: 1

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