9x^2-8=-71

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Solution for 9x^2-8=-71 equation:


Simplifying
9x2 + -8 = -71

Reorder the terms:
-8 + 9x2 = -71

Solving
-8 + 9x2 = -71

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '8' to each side of the equation.
-8 + 8 + 9x2 = -71 + 8

Combine like terms: -8 + 8 = 0
0 + 9x2 = -71 + 8
9x2 = -71 + 8

Combine like terms: -71 + 8 = -63
9x2 = -63

Divide each side by '9'.
x2 = -7

Simplifying
x2 = -7

Reorder the terms:
7 + x2 = -7 + 7

Combine like terms: -7 + 7 = 0
7 + x2 = 0

The solution to this equation could not be determined.

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