(7x-4)(2x+6)=

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Solution for (7x-4)(2x+6)= equation:


Simplifying
(7x + -4)(2x + 6) = 0

Reorder the terms:
(-4 + 7x)(2x + 6) = 0

Reorder the terms:
(-4 + 7x)(6 + 2x) = 0

Multiply (-4 + 7x) * (6 + 2x)
(-4(6 + 2x) + 7x * (6 + 2x)) = 0
((6 * -4 + 2x * -4) + 7x * (6 + 2x)) = 0
((-24 + -8x) + 7x * (6 + 2x)) = 0
(-24 + -8x + (6 * 7x + 2x * 7x)) = 0
(-24 + -8x + (42x + 14x2)) = 0

Combine like terms: -8x + 42x = 34x
(-24 + 34x + 14x2) = 0

Solving
-24 + 34x + 14x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-12 + 17x + 7x2) = 0

Factor a trinomial.
2((-3 + -1x)(4 + -7x)) = 0

Ignore the factor 2.

Subproblem 1

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

Subproblem 2

Set the factor '(4 + -7x)' equal to zero and attempt to solve: Simplifying 4 + -7x = 0 Solving 4 + -7x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -7x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -7x = 0 + -4 -7x = 0 + -4 Combine like terms: 0 + -4 = -4 -7x = -4 Divide each side by '-7'. x = 0.5714285714 Simplifying x = 0.5714285714

Solution

x = {-3, 0.5714285714}

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