8x^2=60-28x

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Solution for 8x^2=60-28x equation:


Simplifying
8x2 = 60 + -28x

Solving
8x2 = 60 + -28x

Solving for variable 'x'.

Reorder the terms:
-60 + 28x + 8x2 = 60 + -28x + -60 + 28x

Reorder the terms:
-60 + 28x + 8x2 = 60 + -60 + -28x + 28x

Combine like terms: 60 + -60 = 0
-60 + 28x + 8x2 = 0 + -28x + 28x
-60 + 28x + 8x2 = -28x + 28x

Combine like terms: -28x + 28x = 0
-60 + 28x + 8x2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(-15 + 7x + 2x2) = 0

Factor a trinomial.
4((-5 + -1x)(3 + -2x)) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(-5 + -1x)' equal to zero and attempt to solve: Simplifying -5 + -1x = 0 Solving -5 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -1x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -1x = 0 + 5 -1x = 0 + 5 Combine like terms: 0 + 5 = 5 -1x = 5 Divide each side by '-1'. x = -5 Simplifying x = -5

Subproblem 2

Set the factor '(3 + -2x)' equal to zero and attempt to solve: Simplifying 3 + -2x = 0 Solving 3 + -2x = 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 + -2x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -2x = 0 + -3 -2x = 0 + -3 Combine like terms: 0 + -3 = -3 -2x = -3 Divide each side by '-2'. x = 1.5 Simplifying x = 1.5

Solution

x = {-5, 1.5}

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