(7x-5)(x+5)=0

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Solution for (7x-5)(x+5)=0 equation:


Simplifying
(7x + -5)(x + 5) = 0

Reorder the terms:
(-5 + 7x)(x + 5) = 0

Reorder the terms:
(-5 + 7x)(5 + x) = 0

Multiply (-5 + 7x) * (5 + x)
(-5(5 + x) + 7x * (5 + x)) = 0
((5 * -5 + x * -5) + 7x * (5 + x)) = 0
((-25 + -5x) + 7x * (5 + x)) = 0
(-25 + -5x + (5 * 7x + x * 7x)) = 0
(-25 + -5x + (35x + 7x2)) = 0

Combine like terms: -5x + 35x = 30x
(-25 + 30x + 7x2) = 0

Solving
-25 + 30x + 7x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-5 + -1x)(5 + -7x) = 0

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 '(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 = {-5, 0.7142857143}

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