(3x+5)(4x-4)=

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Solution for (3x+5)(4x-4)= equation: 


Simplifying
(3x + 5)(4x + -4) = 0

Reorder the terms:
(5 + 3x)(4x + -4) = 0

Reorder the terms:
(5 + 3x)(-4 + 4x) = 0

Multiply (5 + 3x) * (-4 + 4x)
(5(-4 + 4x) + 3x * (-4 + 4x)) = 0
((-4 * 5 + 4x * 5) + 3x * (-4 + 4x)) = 0
((-20 + 20x) + 3x * (-4 + 4x)) = 0
(-20 + 20x + (-4 * 3x + 4x * 3x)) = 0
(-20 + 20x + (-12x + 12x2)) = 0

Combine like terms: 20x + -12x = 8x
(-20 + 8x + 12x2) = 0

Solving
-20 + 8x + 12x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '4'.
4(-5 + 2x + 3x2) = 0

Factor a trinomial.
4((-5 + -3x)(1 + -1x)) = 0

Ignore the factor 4.

Subproblem 1
Set the factor '(-5 + -3x)' equal to zero and attempt to solve:

Simplifying
-5 + -3x = 0

Solving
-5 + -3x = 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 + -3x = 0 + 5

Combine like terms: -5 + 5 = 0
0 + -3x = 0 + 5
-3x = 0 + 5

Combine like terms: 0 + 5 = 5
-3x = 5

Divide each side by '-3'.
x = -1.666666667

Simplifying
x = -1.666666667

Subproblem 2
Set the factor '(1 + -1x)' equal to zero and attempt to solve:

Simplifying
1 + -1x = 0

Solving
1 + -1x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-1' to each side of the equation.
1 + -1 + -1x = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -1x = 0 + -1
-1x = 0 + -1

Combine like terms: 0 + -1 = -1
-1x = -1

Divide each side by '-1'.
x = 1

Simplifying
x = 1
Solution
x = {-1.666666667, 1}

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