(x-5)(7x+14)=0

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Solution for (x-5)(7x+14)=0 equation:


Simplifying
(x + -5)(7x + 14) = 0

Reorder the terms:
(-5 + x)(7x + 14) = 0

Reorder the terms:
(-5 + x)(14 + 7x) = 0

Multiply (-5 + x) * (14 + 7x)
(-5(14 + 7x) + x(14 + 7x)) = 0
((14 * -5 + 7x * -5) + x(14 + 7x)) = 0
((-70 + -35x) + x(14 + 7x)) = 0
(-70 + -35x + (14 * x + 7x * x)) = 0
(-70 + -35x + (14x + 7x2)) = 0

Combine like terms: -35x + 14x = -21x
(-70 + -21x + 7x2) = 0

Solving
-70 + -21x + 7x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '7'.
7(-10 + -3x + x2) = 0

Factor a trinomial.
7((-2 + -1x)(5 + -1x)) = 0

Ignore the factor 7.

Subproblem 1

Set the factor '(-2 + -1x)' equal to zero and attempt to solve: Simplifying -2 + -1x = 0 Solving -2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1x = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1x = 0 + 2 -1x = 0 + 2 Combine like terms: 0 + 2 = 2 -1x = 2 Divide each side by '-1'. x = -2 Simplifying x = -2

Subproblem 2

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

Solution

x = {-2, 5}

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