3 years ago

The first three steps of completing the square to solve the quadratic equation x^2+4x-6=0 are shown below.

1 answer:

5 0

Take the sqrt of both sides of <span>(x+2)^2=10:

x+2 = plus or minus sqrt(10)

Solve for x: x = -2 plus or minus sqrt(10)

Evaluate x: x = -2 + sqrt(10) AND x = -2 - sqrt(10) (answers)

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