9*7-2x*81*2x-1=1

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Solution for 9*7-2x*81*2x-1=1 equation:


Simplifying
9 * 7 + -2x * 81 * 2x + -1 = 1

Multiply 9 * 7
63 + -2x * 81 * 2x + -1 = 1

Reorder the terms for easier multiplication:
63 + -2 * 81 * 2x * x + -1 = 1

Multiply -2 * 81
63 + -162 * 2x * x + -1 = 1

Multiply -162 * 2
63 + -324x * x + -1 = 1

Multiply x * x
63 + -324x2 + -1 = 1

Reorder the terms:
63 + -1 + -324x2 = 1

Combine like terms: 63 + -1 = 62
62 + -324x2 = 1

Solving
62 + -324x2 = 1

Solving for variable 'x'.

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

Add '-62' to each side of the equation.
62 + -62 + -324x2 = 1 + -62

Combine like terms: 62 + -62 = 0
0 + -324x2 = 1 + -62
-324x2 = 1 + -62

Combine like terms: 1 + -62 = -61
-324x2 = -61

Divide each side by '-324'.
x2 = 0.1882716049

Simplifying
x2 = 0.1882716049

Take the square root of each side:
x = {-0.43390276, 0.43390276}

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