(x-8)(x-8)-1=0

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Solution for (x-8)(x-8)-1=0 equation:


Simplifying
(x + -8)(x + -8) + -1 = 0

Reorder the terms:
(-8 + x)(x + -8) + -1 = 0

Reorder the terms:
(-8 + x)(-8 + x) + -1 = 0

Multiply (-8 + x) * (-8 + x)
(-8(-8 + x) + x(-8 + x)) + -1 = 0
((-8 * -8 + x * -8) + x(-8 + x)) + -1 = 0
((64 + -8x) + x(-8 + x)) + -1 = 0
(64 + -8x + (-8 * x + x * x)) + -1 = 0
(64 + -8x + (-8x + x2)) + -1 = 0

Combine like terms: -8x + -8x = -16x
(64 + -16x + x2) + -1 = 0

Reorder the terms:
64 + -1 + -16x + x2 = 0

Combine like terms: 64 + -1 = 63
63 + -16x + x2 = 0

Solving
63 + -16x + x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(7 + -1x)(9 + -1x) = 0

Subproblem 1

Set the factor '(7 + -1x)' equal to zero and attempt to solve: Simplifying 7 + -1x = 0 Solving 7 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1x = 0 + -7 -1x = 0 + -7 Combine like terms: 0 + -7 = -7 -1x = -7 Divide each side by '-1'. x = 7 Simplifying x = 7

Subproblem 2

Set the factor '(9 + -1x)' equal to zero and attempt to solve: Simplifying 9 + -1x = 0 Solving 9 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1x = 0 + -9 -1x = 0 + -9 Combine like terms: 0 + -9 = -9 -1x = -9 Divide each side by '-1'. x = 9 Simplifying x = 9

Solution

x = {7, 9}

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