42x^2+5x=25

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Solution for 42x^2+5x=25 equation:


Simplifying
42x2 + 5x = 25

Reorder the terms:
5x + 42x2 = 25

Solving
5x + 42x2 = 25

Solving for variable 'x'.

Reorder the terms:
-25 + 5x + 42x2 = 25 + -25

Combine like terms: 25 + -25 = 0
-25 + 5x + 42x2 = 0

Factor a trinomial.
(-5 + -6x)(5 + -7x) = 0

Subproblem 1

Set the factor '(-5 + -6x)' equal to zero and attempt to solve: Simplifying -5 + -6x = 0 Solving -5 + -6x = 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 + -6x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -6x = 0 + 5 -6x = 0 + 5 Combine like terms: 0 + 5 = 5 -6x = 5 Divide each side by '-6'. x = -0.8333333333 Simplifying x = -0.8333333333

Subproblem 2

Set the factor '(5 + -7x)' equal to zero and attempt to solve: Simplifying 5 + -7x = 0 Solving 5 + -7x = 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 + -7x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -7x = 0 + -5 -7x = 0 + -5 Combine like terms: 0 + -5 = -5 -7x = -5 Divide each side by '-7'. x = 0.7142857143 Simplifying x = 0.7142857143

Solution

x = {-0.8333333333, 0.7142857143}

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