56x^2+18x=8

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Solution for 56x^2+18x=8 equation:


Simplifying
56x2 + 18x = 8

Reorder the terms:
18x + 56x2 = 8

Solving
18x + 56x2 = 8

Solving for variable 'x'.

Reorder the terms:
-8 + 18x + 56x2 = 8 + -8

Combine like terms: 8 + -8 = 0
-8 + 18x + 56x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-4 + 9x + 28x2) = 0

Factor a trinomial.
2((-4 + -7x)(1 + -4x)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-4 + -7x)' equal to zero and attempt to solve: Simplifying -4 + -7x = 0 Solving -4 + -7x = 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 + -7x = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -7x = 0 + 4 -7x = 0 + 4 Combine like terms: 0 + 4 = 4 -7x = 4 Divide each side by '-7'. x = -0.5714285714 Simplifying x = -0.5714285714

Subproblem 2

Set the factor '(1 + -4x)' equal to zero and attempt to solve: Simplifying 1 + -4x = 0 Solving 1 + -4x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -4x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -4x = 0 + -1 -4x = 0 + -1 Combine like terms: 0 + -1 = -1 -4x = -1 Divide each side by '-4'. x = 0.25 Simplifying x = 0.25

Solution

x = {-0.5714285714, 0.25}

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