Mathematics, 18.03.2021 20:10 sairaanwar67
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 =
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Solve x2 + 12x = –20 by completing the square.
Add (StartFraction b Over 2 EndFraction) squared to...
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