(6x+7)(6x+7)=(9x-8)(9x-8)

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Solution for (6x+7)(6x+7)=(9x-8)(9x-8) equation:


Simplifying
(6x + 7)(6x + 7) = (9x + -8)(9x + -8)

Reorder the terms:
(7 + 6x)(6x + 7) = (9x + -8)(9x + -8)

Reorder the terms:
(7 + 6x)(7 + 6x) = (9x + -8)(9x + -8)

Multiply (7 + 6x) * (7 + 6x)
(7(7 + 6x) + 6x * (7 + 6x)) = (9x + -8)(9x + -8)
((7 * 7 + 6x * 7) + 6x * (7 + 6x)) = (9x + -8)(9x + -8)
((49 + 42x) + 6x * (7 + 6x)) = (9x + -8)(9x + -8)
(49 + 42x + (7 * 6x + 6x * 6x)) = (9x + -8)(9x + -8)
(49 + 42x + (42x + 36x2)) = (9x + -8)(9x + -8)

Combine like terms: 42x + 42x = 84x
(49 + 84x + 36x2) = (9x + -8)(9x + -8)

Reorder the terms:
49 + 84x + 36x2 = (-8 + 9x)(9x + -8)

Reorder the terms:
49 + 84x + 36x2 = (-8 + 9x)(-8 + 9x)

Multiply (-8 + 9x) * (-8 + 9x)
49 + 84x + 36x2 = (-8(-8 + 9x) + 9x * (-8 + 9x))
49 + 84x + 36x2 = ((-8 * -8 + 9x * -8) + 9x * (-8 + 9x))
49 + 84x + 36x2 = ((64 + -72x) + 9x * (-8 + 9x))
49 + 84x + 36x2 = (64 + -72x + (-8 * 9x + 9x * 9x))
49 + 84x + 36x2 = (64 + -72x + (-72x + 81x2))

Combine like terms: -72x + -72x = -144x
49 + 84x + 36x2 = (64 + -144x + 81x2)

Solving
49 + 84x + 36x2 = 64 + -144x + 81x2

Solving for variable 'x'.

Reorder the terms:
49 + -64 + 84x + 144x + 36x2 + -81x2 = 64 + -144x + 81x2 + -64 + 144x + -81x2

Combine like terms: 49 + -64 = -15
-15 + 84x + 144x + 36x2 + -81x2 = 64 + -144x + 81x2 + -64 + 144x + -81x2

Combine like terms: 84x + 144x = 228x
-15 + 228x + 36x2 + -81x2 = 64 + -144x + 81x2 + -64 + 144x + -81x2

Combine like terms: 36x2 + -81x2 = -45x2
-15 + 228x + -45x2 = 64 + -144x + 81x2 + -64 + 144x + -81x2

Reorder the terms:
-15 + 228x + -45x2 = 64 + -64 + -144x + 144x + 81x2 + -81x2

Combine like terms: 64 + -64 = 0
-15 + 228x + -45x2 = 0 + -144x + 144x + 81x2 + -81x2
-15 + 228x + -45x2 = -144x + 144x + 81x2 + -81x2

Combine like terms: -144x + 144x = 0
-15 + 228x + -45x2 = 0 + 81x2 + -81x2
-15 + 228x + -45x2 = 81x2 + -81x2

Combine like terms: 81x2 + -81x2 = 0
-15 + 228x + -45x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-5 + 76x + -15x2) = 0

Factor a trinomial.
3((-5 + x)(1 + -15x)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-5 + x)' equal to zero and attempt to solve: Simplifying -5 + x = 0 Solving -5 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + x = 0 + 5 x = 0 + 5 Combine like terms: 0 + 5 = 5 x = 5 Simplifying x = 5

Subproblem 2

Set the factor '(1 + -15x)' equal to zero and attempt to solve: Simplifying 1 + -15x = 0 Solving 1 + -15x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -15x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -15x = 0 + -1 -15x = 0 + -1 Combine like terms: 0 + -1 = -1 -15x = -1 Divide each side by '-15'. x = 0.06666666667 Simplifying x = 0.06666666667

Solution

x = {5, 0.06666666667}

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