(7x+3)(-8x-6)=

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Solution for (7x+3)(-8x-6)= equation:


Simplifying
(7x + 3)(-8x + -6) = 0

Reorder the terms:
(3 + 7x)(-8x + -6) = 0

Reorder the terms:
(3 + 7x)(-6 + -8x) = 0

Multiply (3 + 7x) * (-6 + -8x)
(3(-6 + -8x) + 7x * (-6 + -8x)) = 0
((-6 * 3 + -8x * 3) + 7x * (-6 + -8x)) = 0
((-18 + -24x) + 7x * (-6 + -8x)) = 0
(-18 + -24x + (-6 * 7x + -8x * 7x)) = 0
(-18 + -24x + (-42x + -56x2)) = 0

Combine like terms: -24x + -42x = -66x
(-18 + -66x + -56x2) = 0

Solving
-18 + -66x + -56x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '-2'.
-2(9 + 33x + 28x2) = 0

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

Ignore the factor -2.

Subproblem 1

Set the factor '(3 + 4x)' equal to zero and attempt to solve: Simplifying 3 + 4x = 0 Solving 3 + 4x = 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 + 4x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 4x = 0 + -3 4x = 0 + -3 Combine like terms: 0 + -3 = -3 4x = -3 Divide each side by '4'. x = -0.75 Simplifying x = -0.75

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 = {-0.75, -0.4285714286}

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