8x^2-16x=x^2+5x

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Solution for 8x^2-16x=x^2+5x equation:


Simplifying
8x2 + -16x = x2 + 5x

Reorder the terms:
-16x + 8x2 = x2 + 5x

Reorder the terms:
-16x + 8x2 = 5x + x2

Solving
-16x + 8x2 = 5x + x2

Solving for variable 'x'.

Reorder the terms:
-16x + -5x + 8x2 + -1x2 = 5x + x2 + -5x + -1x2

Combine like terms: -16x + -5x = -21x
-21x + 8x2 + -1x2 = 5x + x2 + -5x + -1x2

Combine like terms: 8x2 + -1x2 = 7x2
-21x + 7x2 = 5x + x2 + -5x + -1x2

Reorder the terms:
-21x + 7x2 = 5x + -5x + x2 + -1x2

Combine like terms: 5x + -5x = 0
-21x + 7x2 = 0 + x2 + -1x2
-21x + 7x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-21x + 7x2 = 0

Factor out the Greatest Common Factor (GCF), '7x'.
7x(-3 + x) = 0

Ignore the factor 7.

Subproblem 1

Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0

Subproblem 2

Set the factor '(-3 + x)' equal to zero and attempt to solve: Simplifying -3 + x = 0 Solving -3 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + x = 0 + 3 x = 0 + 3 Combine like terms: 0 + 3 = 3 x = 3 Simplifying x = 3

Solution

x = {0, 3}

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