(7x-5)(2x+7)=0

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Solution for (7x-5)(2x+7)=0 equation:


Simplifying
(7x + -5)(2x + 7) = 0

Reorder the terms:
(-5 + 7x)(2x + 7) = 0

Reorder the terms:
(-5 + 7x)(7 + 2x) = 0

Multiply (-5 + 7x) * (7 + 2x)
(-5(7 + 2x) + 7x * (7 + 2x)) = 0
((7 * -5 + 2x * -5) + 7x * (7 + 2x)) = 0
((-35 + -10x) + 7x * (7 + 2x)) = 0
(-35 + -10x + (7 * 7x + 2x * 7x)) = 0
(-35 + -10x + (49x + 14x2)) = 0

Combine like terms: -10x + 49x = 39x
(-35 + 39x + 14x2) = 0

Solving
-35 + 39x + 14x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-7 + -2x)(5 + -7x) = 0


Subproblem 1
Set the factor '(-7 + -2x)' equal to zero and attempt to solve:

Simplifying
-7 + -2x = 0

Solving
-7 + -2x = 0

Move all terms containing x to the left, all other terms to the right.

Add '7' to each side of the equation.
-7 + 7 + -2x = 0 + 7

Combine like terms: -7 + 7 = 0
0 + -2x = 0 + 7
-2x = 0 + 7

Combine like terms: 0 + 7 = 7
-2x = 7

Divide each side by '-2'.
x = -3.5

Simplifying
x = -3.5

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 = {-3.5, 0.7142857143}

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