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Simplifying
8x2 = 64 + -1x2
Solving
8x2 = 64 + -1x2
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add 'x2' to each side of the equation.
8x2 + x2 = 64 + -1x2 + x2
Combine like terms: 8x2 + x2 = 9x2
9x2 = 64 + -1x2 + x2
Combine like terms: -1x2 + x2 = 0
9x2 = 64 + 0
9x2 = 64
Divide each side by '9'.
x2 = 7.111111111
Simplifying
x2 = 7.111111111
Take the square root of each side:
x = {-2.666666667, 2.666666667}
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