(7x-3)(2x+4)=0

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Solution for (7x-3)(2x+4)=0 equation:


Simplifying
(7x + -3)(2x + 4) = 0

Reorder the terms:
(-3 + 7x)(2x + 4) = 0

Reorder the terms:
(-3 + 7x)(4 + 2x) = 0

Multiply (-3 + 7x) * (4 + 2x)
(-3(4 + 2x) + 7x * (4 + 2x)) = 0
((4 * -3 + 2x * -3) + 7x * (4 + 2x)) = 0
((-12 + -6x) + 7x * (4 + 2x)) = 0
(-12 + -6x + (4 * 7x + 2x * 7x)) = 0
(-12 + -6x + (28x + 14x2)) = 0

Combine like terms: -6x + 28x = 22x
(-12 + 22x + 14x2) = 0

Solving
-12 + 22x + 14x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-6 + 11x + 7x2) = 0

Factor a trinomial.
2((-2 + -1x)(3 + -7x)) = 0

Ignore the factor 2.

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 '(3 + -7x)' equal to zero and attempt to solve: Simplifying 3 + -7x = 0 Solving 3 + -7x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -7x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -7x = 0 + -3 -7x = 0 + -3 Combine like terms: 0 + -3 = -3 -7x = -3 Divide each side by '-7'. x = 0.4285714286 Simplifying x = 0.4285714286

Solution

x = {-2, 0.4285714286}

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