5x^2+16x=4x^2-64

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Solution for 5x^2+16x=4x^2-64 equation:


Simplifying
5x2 + 16x = 4x2 + -64

Reorder the terms:
16x + 5x2 = 4x2 + -64

Reorder the terms:
16x + 5x2 = -64 + 4x2

Solving
16x + 5x2 = -64 + 4x2

Solving for variable 'x'.

Reorder the terms:
64 + 16x + 5x2 + -4x2 = -64 + 4x2 + 64 + -4x2

Combine like terms: 5x2 + -4x2 = 1x2
64 + 16x + 1x2 = -64 + 4x2 + 64 + -4x2

Reorder the terms:
64 + 16x + 1x2 = -64 + 64 + 4x2 + -4x2

Combine like terms: -64 + 64 = 0
64 + 16x + 1x2 = 0 + 4x2 + -4x2
64 + 16x + 1x2 = 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
64 + 16x + 1x2 = 0

Factor a trinomial.
(8 + x)(8 + x) = 0

Subproblem 1

Set the factor '(8 + x)' equal to zero and attempt to solve: Simplifying 8 + x = 0 Solving 8 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + x = 0 + -8 x = 0 + -8 Combine like terms: 0 + -8 = -8 x = -8 Simplifying x = -8

Subproblem 2

Set the factor '(8 + x)' equal to zero and attempt to solve: Simplifying 8 + x = 0 Solving 8 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + x = 0 + -8 x = 0 + -8 Combine like terms: 0 + -8 = -8 x = -8 Simplifying x = -8

Solution

x = {-8, -8}

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