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

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Solution for (6x-4)(5x+9)=0 equation: 


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

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

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

Multiply (-4 + 6x) * (9 + 5x)
(-4(9 + 5x) + 6x * (9 + 5x)) = 0
((9 * -4 + 5x * -4) + 6x * (9 + 5x)) = 0
((-36 + -20x) + 6x * (9 + 5x)) = 0
(-36 + -20x + (9 * 6x + 5x * 6x)) = 0
(-36 + -20x + (54x + 30x2)) = 0

Combine like terms: -20x + 54x = 34x
(-36 + 34x + 30x2) = 0

Solving
-36 + 34x + 30x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-18 + 17x + 15x2) = 0

Factor a trinomial.
2((-9 + -5x)(2 + -3x)) = 0

Ignore the factor 2.

Subproblem 1
Set the factor '(-9 + -5x)' equal to zero and attempt to solve:

Simplifying
-9 + -5x = 0

Solving
-9 + -5x = 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 + -5x = 0 + 9

Combine like terms: -9 + 9 = 0
0 + -5x = 0 + 9
-5x = 0 + 9

Combine like terms: 0 + 9 = 9
-5x = 9

Divide each side by '-5'.
x = -1.8

Simplifying
x = -1.8

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

Simplifying
2 + -3x = 0

Solving
2 + -3x = 0

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

Add '-2' to each side of the equation.
2 + -2 + -3x = 0 + -2

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

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

Divide each side by '-3'.
x = 0.6666666667

Simplifying
x = 0.6666666667
Solution
x = {-1.8, 0.6666666667}

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