(5x+4)*(6x-9)=

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Solution for (5x+4)*(6x-9)= equation: 


Simplifying
(5x + 4)(6x + -9) = 0

Reorder the terms:
(4 + 5x)(6x + -9) = 0

Reorder the terms:
(4 + 5x)(-9 + 6x) = 0

Multiply (4 + 5x) * (-9 + 6x)
(4(-9 + 6x) + 5x * (-9 + 6x)) = 0
((-9 * 4 + 6x * 4) + 5x * (-9 + 6x)) = 0
((-36 + 24x) + 5x * (-9 + 6x)) = 0
(-36 + 24x + (-9 * 5x + 6x * 5x)) = 0
(-36 + 24x + (-45x + 30x2)) = 0

Combine like terms: 24x + -45x = -21x
(-36 + -21x + 30x2) = 0

Solving
-36 + -21x + 30x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(-12 + -7x + 10x2) = 0

Factor a trinomial.
3((-4 + -5x)(3 + -2x)) = 0

Ignore the factor 3.

Subproblem 1
Set the factor '(-4 + -5x)' equal to zero and attempt to solve:

Simplifying
-4 + -5x = 0

Solving
-4 + -5x = 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 + -5x = 0 + 4

Combine like terms: -4 + 4 = 0
0 + -5x = 0 + 4
-5x = 0 + 4

Combine like terms: 0 + 4 = 4
-5x = 4

Divide each side by '-5'.
x = -0.8

Simplifying
x = -0.8

Subproblem 2
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
Solution
x = {-0.8, 1.5}

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