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

Mathematics

1 answer:

Scorpion4ik [409]3 years ago

4 0

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

Step-by-step explanation:

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If f(x) = log2 (x + 1), what is f-1(2)? (2 points)

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