(8x^3+2x^2-4x)-(2x^2+5x+7)=

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Solution for (8x^3+2x^2-4x)-(2x^2+5x+7)= equation: 


Simplifying
(8x3 + 2x2 + -4x) + -1(2x2 + 5x + 7) = 0

Reorder the terms:
(-4x + 2x2 + 8x3) + -1(2x2 + 5x + 7) = 0

Remove parenthesis around (-4x + 2x2 + 8x3)
-4x + 2x2 + 8x3 + -1(2x2 + 5x + 7) = 0

Reorder the terms:
-4x + 2x2 + 8x3 + -1(7 + 5x + 2x2) = 0
-4x + 2x2 + 8x3 + (7 * -1 + 5x * -1 + 2x2 * -1) = 0
-4x + 2x2 + 8x3 + (-7 + -5x + -2x2) = 0

Reorder the terms:
-7 + -4x + -5x + 2x2 + -2x2 + 8x3 = 0

Combine like terms: -4x + -5x = -9x
-7 + -9x + 2x2 + -2x2 + 8x3 = 0

Combine like terms: 2x2 + -2x2 = 0
-7 + -9x + 0 + 8x3 = 0
-7 + -9x + 8x3 = 0

Solving
-7 + -9x + 8x3 = 0

Solving for variable 'x'.

The solution to this equation could not be determined.

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