50(x+7)+50(x+7)=8(x+7)(x-7)

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Solution for 50(x+7)+50(x+7)=8(x+7)(x-7) equation:


Simplifying
50(x + 7) + 50(x + 7) = 8(x + 7)(x + -7)

Reorder the terms:
50(7 + x) + 50(x + 7) = 8(x + 7)(x + -7)
(7 * 50 + x * 50) + 50(x + 7) = 8(x + 7)(x + -7)
(350 + 50x) + 50(x + 7) = 8(x + 7)(x + -7)

Reorder the terms:
350 + 50x + 50(7 + x) = 8(x + 7)(x + -7)
350 + 50x + (7 * 50 + x * 50) = 8(x + 7)(x + -7)
350 + 50x + (350 + 50x) = 8(x + 7)(x + -7)

Reorder the terms:
350 + 350 + 50x + 50x = 8(x + 7)(x + -7)

Combine like terms: 350 + 350 = 700
700 + 50x + 50x = 8(x + 7)(x + -7)

Combine like terms: 50x + 50x = 100x
700 + 100x = 8(x + 7)(x + -7)

Reorder the terms:
700 + 100x = 8(7 + x)(x + -7)

Reorder the terms:
700 + 100x = 8(7 + x)(-7 + x)

Multiply (7 + x) * (-7 + x)
700 + 100x = 8(7(-7 + x) + x(-7 + x))
700 + 100x = 8((-7 * 7 + x * 7) + x(-7 + x))
700 + 100x = 8((-49 + 7x) + x(-7 + x))
700 + 100x = 8(-49 + 7x + (-7 * x + x * x))
700 + 100x = 8(-49 + 7x + (-7x + x2))

Combine like terms: 7x + -7x = 0
700 + 100x = 8(-49 + 0 + x2)
700 + 100x = 8(-49 + x2)
700 + 100x = (-49 * 8 + x2 * 8)
700 + 100x = (-392 + 8x2)

Solving
700 + 100x = -392 + 8x2

Solving for variable 'x'.

Reorder the terms:
700 + 392 + 100x + -8x2 = -392 + 8x2 + 392 + -8x2

Combine like terms: 700 + 392 = 1092
1092 + 100x + -8x2 = -392 + 8x2 + 392 + -8x2

Reorder the terms:
1092 + 100x + -8x2 = -392 + 392 + 8x2 + -8x2

Combine like terms: -392 + 392 = 0
1092 + 100x + -8x2 = 0 + 8x2 + -8x2
1092 + 100x + -8x2 = 8x2 + -8x2

Combine like terms: 8x2 + -8x2 = 0
1092 + 100x + -8x2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(273 + 25x + -2x2) = 0

Factor a trinomial.
4((39 + -2x)(7 + x)) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(39 + -2x)' equal to zero and attempt to solve: Simplifying 39 + -2x = 0 Solving 39 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-39' to each side of the equation. 39 + -39 + -2x = 0 + -39 Combine like terms: 39 + -39 = 0 0 + -2x = 0 + -39 -2x = 0 + -39 Combine like terms: 0 + -39 = -39 -2x = -39 Divide each side by '-2'. x = 19.5 Simplifying x = 19.5

Subproblem 2

Set the factor '(7 + x)' equal to zero and attempt to solve: Simplifying 7 + x = 0 Solving 7 + x = 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 + x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + x = 0 + -7 x = 0 + -7 Combine like terms: 0 + -7 = -7 x = -7 Simplifying x = -7

Solution

x = {19.5, -7}

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