(2x+9)(4x-3)=8x^2-12

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Solution for (2x+9)(4x-3)=8x^2-12 equation:


Simplifying
(2x + 9)(4x + -3) = 8x2 + -12

Reorder the terms:
(9 + 2x)(4x + -3) = 8x2 + -12

Reorder the terms:
(9 + 2x)(-3 + 4x) = 8x2 + -12

Multiply (9 + 2x) * (-3 + 4x)
(9(-3 + 4x) + 2x * (-3 + 4x)) = 8x2 + -12
((-3 * 9 + 4x * 9) + 2x * (-3 + 4x)) = 8x2 + -12
((-27 + 36x) + 2x * (-3 + 4x)) = 8x2 + -12
(-27 + 36x + (-3 * 2x + 4x * 2x)) = 8x2 + -12
(-27 + 36x + (-6x + 8x2)) = 8x2 + -12

Combine like terms: 36x + -6x = 30x
(-27 + 30x + 8x2) = 8x2 + -12

Reorder the terms:
-27 + 30x + 8x2 = -12 + 8x2

Add '-8x2' to each side of the equation.
-27 + 30x + 8x2 + -8x2 = -12 + 8x2 + -8x2

Combine like terms: 8x2 + -8x2 = 0
-27 + 30x + 0 = -12 + 8x2 + -8x2
-27 + 30x = -12 + 8x2 + -8x2

Combine like terms: 8x2 + -8x2 = 0
-27 + 30x = -12 + 0
-27 + 30x = -12

Solving
-27 + 30x = -12

Solving for variable 'x'.

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

Add '27' to each side of the equation.
-27 + 27 + 30x = -12 + 27

Combine like terms: -27 + 27 = 0
0 + 30x = -12 + 27
30x = -12 + 27

Combine like terms: -12 + 27 = 15
30x = 15

Divide each side by '30'.
x = 0.5

Simplifying
x = 0.5

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