(X^2-5x-8)-(4x^2+6x-20)=

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Solution for (X^2-5x-8)-(4x^2+6x-20)= equation: 


Simplifying
(X2 + -5x + -8) + -1(4x2 + 6x + -20) = 0

Reorder the terms:
(-8 + X2 + -5x) + -1(4x2 + 6x + -20) = 0

Remove parenthesis around (-8 + X2 + -5x)
-8 + X2 + -5x + -1(4x2 + 6x + -20) = 0

Reorder the terms:
-8 + X2 + -5x + -1(-20 + 6x + 4x2) = 0
-8 + X2 + -5x + (-20 * -1 + 6x * -1 + 4x2 * -1) = 0
-8 + X2 + -5x + (20 + -6x + -4x2) = 0

Reorder the terms:
-8 + 20 + X2 + -5x + -6x + -4x2 = 0

Combine like terms: -8 + 20 = 12
12 + X2 + -5x + -6x + -4x2 = 0

Combine like terms: -5x + -6x = -11x
12 + X2 + -11x + -4x2 = 0

Solving
12 + X2 + -11x + -4x2 = 0

Solving for variable 'X'.

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

Add '-12' to each side of the equation.
12 + X2 + -11x + -12 + -4x2 = 0 + -12

Reorder the terms:
12 + -12 + X2 + -11x + -4x2 = 0 + -12

Combine like terms: 12 + -12 = 0
0 + X2 + -11x + -4x2 = 0 + -12
X2 + -11x + -4x2 = 0 + -12

Combine like terms: 0 + -12 = -12
X2 + -11x + -4x2 = -12

Add '11x' to each side of the equation.
X2 + -11x + 11x + -4x2 = -12 + 11x

Combine like terms: -11x + 11x = 0
X2 + 0 + -4x2 = -12 + 11x
X2 + -4x2 = -12 + 11x

Add '4x2' to each side of the equation.
X2 + -4x2 + 4x2 = -12 + 11x + 4x2

Combine like terms: -4x2 + 4x2 = 0
X2 + 0 = -12 + 11x + 4x2
X2 = -12 + 11x + 4x2

Simplifying
X2 = -12 + 11x + 4x2

Reorder the terms:
12 + X2 + -11x + -4x2 = -12 + 11x + 4x2 + 12 + -11x + -4x2

Reorder the terms:
12 + X2 + -11x + -4x2 = -12 + 12 + 11x + -11x + 4x2 + -4x2

Combine like terms: -12 + 12 = 0
12 + X2 + -11x + -4x2 = 0 + 11x + -11x + 4x2 + -4x2
12 + X2 + -11x + -4x2 = 11x + -11x + 4x2 + -4x2

Combine like terms: 11x + -11x = 0
12 + X2 + -11x + -4x2 = 0 + 4x2 + -4x2
12 + X2 + -11x + -4x2 = 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
12 + X2 + -11x + -4x2 = 0

The solution to this equation could not be determined.

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