7(x-4)(x-4)-18=10

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Solution for 7(x-4)(x-4)-18=10 equation:


Simplifying
7(x + -4)(x + -4) + -18 = 10

Reorder the terms:
7(-4 + x)(x + -4) + -18 = 10

Reorder the terms:
7(-4 + x)(-4 + x) + -18 = 10

Multiply (-4 + x) * (-4 + x)
7(-4(-4 + x) + x(-4 + x)) + -18 = 10
7((-4 * -4 + x * -4) + x(-4 + x)) + -18 = 10
7((16 + -4x) + x(-4 + x)) + -18 = 10
7(16 + -4x + (-4 * x + x * x)) + -18 = 10
7(16 + -4x + (-4x + x2)) + -18 = 10

Combine like terms: -4x + -4x = -8x
7(16 + -8x + x2) + -18 = 10
(16 * 7 + -8x * 7 + x2 * 7) + -18 = 10
(112 + -56x + 7x2) + -18 = 10

Reorder the terms:
112 + -18 + -56x + 7x2 = 10

Combine like terms: 112 + -18 = 94
94 + -56x + 7x2 = 10

Solving
94 + -56x + 7x2 = 10

Solving for variable 'x'.

Reorder the terms:
94 + -10 + -56x + 7x2 = 10 + -10

Combine like terms: 94 + -10 = 84
84 + -56x + 7x2 = 10 + -10

Combine like terms: 10 + -10 = 0
84 + -56x + 7x2 = 0

Factor out the Greatest Common Factor (GCF), '7'.
7(12 + -8x + x2) = 0

Factor a trinomial.
7((2 + -1x)(6 + -1x)) = 0

Ignore the factor 7.

Subproblem 1

Set the factor '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2

Subproblem 2

Set the factor '(6 + -1x)' equal to zero and attempt to solve: Simplifying 6 + -1x = 0 Solving 6 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1x = 0 + -6 -1x = 0 + -6 Combine like terms: 0 + -6 = -6 -1x = -6 Divide each side by '-1'. x = 6 Simplifying x = 6

Solution

x = {2, 6}

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