42x^2-54x+72-56x=0

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Solution for 42x^2-54x+72-56x=0 equation:


Simplifying
42x2 + -54x + 72 + -56x = 0

Reorder the terms:
72 + -54x + -56x + 42x2 = 0

Combine like terms: -54x + -56x = -110x
72 + -110x + 42x2 = 0

Solving
72 + -110x + 42x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(36 + -55x + 21x2) = 0

Factor a trinomial.
2((9 + -7x)(4 + -3x)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(9 + -7x)' equal to zero and attempt to solve: Simplifying 9 + -7x = 0 Solving 9 + -7x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -7x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -7x = 0 + -9 -7x = 0 + -9 Combine like terms: 0 + -9 = -9 -7x = -9 Divide each side by '-7'. x = 1.285714286 Simplifying x = 1.285714286

Subproblem 2

Set the factor '(4 + -3x)' equal to zero and attempt to solve: Simplifying 4 + -3x = 0 Solving 4 + -3x = 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 + -3x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -3x = 0 + -4 -3x = 0 + -4 Combine like terms: 0 + -4 = -4 -3x = -4 Divide each side by '-3'. x = 1.333333333 Simplifying x = 1.333333333

Solution

x = {1.285714286, 1.333333333}

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