(7x+3)(2x-6)=0

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Solution for (7x+3)(2x-6)=0 equation:


Simplifying
(7x + 3)(2x + -6) = 0

Reorder the terms:
(3 + 7x)(2x + -6) = 0

Reorder the terms:
(3 + 7x)(-6 + 2x) = 0

Multiply (3 + 7x) * (-6 + 2x)
(3(-6 + 2x) + 7x * (-6 + 2x)) = 0
((-6 * 3 + 2x * 3) + 7x * (-6 + 2x)) = 0
((-18 + 6x) + 7x * (-6 + 2x)) = 0
(-18 + 6x + (-6 * 7x + 2x * 7x)) = 0
(-18 + 6x + (-42x + 14x2)) = 0

Combine like terms: 6x + -42x = -36x
(-18 + -36x + 14x2) = 0

Solving
-18 + -36x + 14x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-9 + -18x + 7x2) = 0

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

Ignore the factor 2.

Subproblem 1

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

Subproblem 2

Set the factor '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 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 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3

Solution

x = {-0.4285714286, 3}

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