(2x+3)(2x-9)=

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Solution for (2x+3)(2x-9)= equation: 


Simplifying
(2x + 3)(2x + -9) = 0

Reorder the terms:
(3 + 2x)(2x + -9) = 0

Reorder the terms:
(3 + 2x)(-9 + 2x) = 0

Multiply (3 + 2x) * (-9 + 2x)
(3(-9 + 2x) + 2x * (-9 + 2x)) = 0
((-9 * 3 + 2x * 3) + 2x * (-9 + 2x)) = 0
((-27 + 6x) + 2x * (-9 + 2x)) = 0
(-27 + 6x + (-9 * 2x + 2x * 2x)) = 0
(-27 + 6x + (-18x + 4x2)) = 0

Combine like terms: 6x + -18x = -12x
(-27 + -12x + 4x2) = 0

Solving
-27 + -12x + 4x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-3 + -2x)(9 + -2x) = 0


Subproblem 1
Set the factor '(-3 + -2x)' equal to zero and attempt to solve:

Simplifying
-3 + -2x = 0

Solving
-3 + -2x = 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 + -2x = 0 + 3

Combine like terms: -3 + 3 = 0
0 + -2x = 0 + 3
-2x = 0 + 3

Combine like terms: 0 + 3 = 3
-2x = 3

Divide each side by '-2'.
x = -1.5

Simplifying
x = -1.5

Subproblem 2
Set the factor '(9 + -2x)' equal to zero and attempt to solve:

Simplifying
9 + -2x = 0

Solving
9 + -2x = 0

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

Add '-9' to each side of the equation.
9 + -9 + -2x = 0 + -9

Combine like terms: 9 + -9 = 0
0 + -2x = 0 + -9
-2x = 0 + -9

Combine like terms: 0 + -9 = -9
-2x = -9

Divide each side by '-2'.
x = 4.5

Simplifying
x = 4.5
Solution
x = {-1.5, 4.5}

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