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

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

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

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

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

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

Combine like terms: -12x + 4x = -8x
(-12 + -8x + 4x2) = 0

Solving
-12 + -8x + 4x2 = 0

Solving for variable 'x'.

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

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

Ignore the factor 4.
Subproblem 1
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
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 = {-1, 3}