(4x-9)(3x+4)=0

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Solution for (4x-9)(3x+4)=0 equation: 


Simplifying
(4x + -9)(3x + 4) = 0

Reorder the terms:
(-9 + 4x)(3x + 4) = 0

Reorder the terms:
(-9 + 4x)(4 + 3x) = 0

Multiply (-9 + 4x) * (4 + 3x)
(-9(4 + 3x) + 4x * (4 + 3x)) = 0
((4 * -9 + 3x * -9) + 4x * (4 + 3x)) = 0
((-36 + -27x) + 4x * (4 + 3x)) = 0
(-36 + -27x + (4 * 4x + 3x * 4x)) = 0
(-36 + -27x + (16x + 12x2)) = 0

Combine like terms: -27x + 16x = -11x
(-36 + -11x + 12x2) = 0

Solving
-36 + -11x + 12x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-4 + -3x)(9 + -4x) = 0


Subproblem 1
Set the factor '(-4 + -3x)' equal to zero and attempt to solve:

Simplifying
-4 + -3x = 0

Solving
-4 + -3x = 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 + -3x = 0 + 4

Combine like terms: -4 + 4 = 0
0 + -3x = 0 + 4
-3x = 0 + 4

Combine like terms: 0 + 4 = 4
-3x = 4

Divide each side by '-3'.
x = -1.333333333

Simplifying
x = -1.333333333

Subproblem 2
Set the factor '(9 + -4x)' equal to zero and attempt to solve:

Simplifying
9 + -4x = 0

Solving
9 + -4x = 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 + -4x = 0 + -9

Combine like terms: 9 + -9 = 0
0 + -4x = 0 + -9
-4x = 0 + -9

Combine like terms: 0 + -9 = -9
-4x = -9

Divide each side by '-4'.
x = 2.25

Simplifying
x = 2.25
Solution
x = {-1.333333333, 2.25}

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