4x^2-140=5x^2+27x

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Solution for 4x^2-140=5x^2+27x equation:


Simplifying
4x2 + -140 = 5x2 + 27x

Reorder the terms:
-140 + 4x2 = 5x2 + 27x

Reorder the terms:
-140 + 4x2 = 27x + 5x2

Solving
-140 + 4x2 = 27x + 5x2

Solving for variable 'x'.

Reorder the terms:
-140 + -27x + 4x2 + -5x2 = 27x + 5x2 + -27x + -5x2

Combine like terms: 4x2 + -5x2 = -1x2
-140 + -27x + -1x2 = 27x + 5x2 + -27x + -5x2

Reorder the terms:
-140 + -27x + -1x2 = 27x + -27x + 5x2 + -5x2

Combine like terms: 27x + -27x = 0
-140 + -27x + -1x2 = 0 + 5x2 + -5x2
-140 + -27x + -1x2 = 5x2 + -5x2

Combine like terms: 5x2 + -5x2 = 0
-140 + -27x + -1x2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(140 + 27x + x2) = 0

Factor a trinomial.
-1((20 + x)(7 + x)) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(20 + x)' equal to zero and attempt to solve: Simplifying 20 + x = 0 Solving 20 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-20' to each side of the equation. 20 + -20 + x = 0 + -20 Combine like terms: 20 + -20 = 0 0 + x = 0 + -20 x = 0 + -20 Combine like terms: 0 + -20 = -20 x = -20 Simplifying x = -20

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 = {-20, -7}

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