56x^2-11x=15

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Solution for 56x^2-11x=15 equation:


Simplifying
56x2 + -11x = 15

Reorder the terms:
-11x + 56x2 = 15

Solving
-11x + 56x2 = 15

Solving for variable 'x'.

Reorder the terms:
-15 + -11x + 56x2 = 15 + -15

Combine like terms: 15 + -15 = 0
-15 + -11x + 56x2 = 0

Factor a trinomial.
(-3 + -7x)(5 + -8x) = 0

Subproblem 1

Set the factor '(-3 + -7x)' equal to zero and attempt to solve: Simplifying -3 + -7x = 0 Solving -3 + -7x = 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 + -7x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -7x = 0 + 3 -7x = 0 + 3 Combine like terms: 0 + 3 = 3 -7x = 3 Divide each side by '-7'. x = -0.4285714286 Simplifying x = -0.4285714286

Subproblem 2

Set the factor '(5 + -8x)' equal to zero and attempt to solve: Simplifying 5 + -8x = 0 Solving 5 + -8x = 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 + -8x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -8x = 0 + -5 -8x = 0 + -5 Combine like terms: 0 + -5 = -5 -8x = -5 Divide each side by '-8'. x = 0.625 Simplifying x = 0.625

Solution

x = {-0.4285714286, 0.625}

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