5x^2+20x=4x^2+16x+12

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Solution for 5x^2+20x=4x^2+16x+12 equation:


Simplifying
5x2 + 20x = 4x2 + 16x + 12

Reorder the terms:
20x + 5x2 = 4x2 + 16x + 12

Reorder the terms:
20x + 5x2 = 12 + 16x + 4x2

Solving
20x + 5x2 = 12 + 16x + 4x2

Solving for variable 'x'.

Reorder the terms:
-12 + 20x + -16x + 5x2 + -4x2 = 12 + 16x + 4x2 + -12 + -16x + -4x2

Combine like terms: 20x + -16x = 4x
-12 + 4x + 5x2 + -4x2 = 12 + 16x + 4x2 + -12 + -16x + -4x2

Combine like terms: 5x2 + -4x2 = 1x2
-12 + 4x + 1x2 = 12 + 16x + 4x2 + -12 + -16x + -4x2

Reorder the terms:
-12 + 4x + 1x2 = 12 + -12 + 16x + -16x + 4x2 + -4x2

Combine like terms: 12 + -12 = 0
-12 + 4x + 1x2 = 0 + 16x + -16x + 4x2 + -4x2
-12 + 4x + 1x2 = 16x + -16x + 4x2 + -4x2

Combine like terms: 16x + -16x = 0
-12 + 4x + 1x2 = 0 + 4x2 + -4x2
-12 + 4x + 1x2 = 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
-12 + 4x + 1x2 = 0

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

Subproblem 1

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

Subproblem 2

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

Solution

x = {-6, 2}

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