4x^2-16x-20-(-8x+12)=0

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Solution for 4x^2-16x-20-(-8x+12)=0 equation:


Simplifying
4x2 + -16x + -20 + -1(-8x + 12) = 0

Reorder the terms:
4x2 + -16x + -20 + -1(12 + -8x) = 0
4x2 + -16x + -20 + (12 * -1 + -8x * -1) = 0
4x2 + -16x + -20 + (-12 + 8x) = 0

Reorder the terms:
-20 + -12 + -16x + 8x + 4x2 = 0

Combine like terms: -20 + -12 = -32
-32 + -16x + 8x + 4x2 = 0

Combine like terms: -16x + 8x = -8x
-32 + -8x + 4x2 = 0

Solving
-32 + -8x + 4x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '4'.
4(-8 + -2x + x2) = 0

Factor a trinomial.
4((-2 + -1x)(4 + -1x)) = 0

Ignore the factor 4.

Subproblem 1

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

Subproblem 2

Set the factor '(4 + -1x)' equal to zero and attempt to solve: Simplifying 4 + -1x = 0 Solving 4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x = 0 + -4 -1x = 0 + -4 Combine like terms: 0 + -4 = -4 -1x = -4 Divide each side by '-1'. x = 4 Simplifying x = 4

Solution

x = {-2, 4}

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