(8x^2-5x^3)-(4x^2-9x^3)=

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Solution for (8x^2-5x^3)-(4x^2-9x^3)= equation:


Simplifying
(8x2 + -5x3) + -1(4x2 + -9x3) = 0

Remove parenthesis around (8x2 + -5x3)
8x2 + -5x3 + -1(4x2 + -9x3) = 0
8x2 + -5x3 + (4x2 * -1 + -9x3 * -1) = 0
8x2 + -5x3 + (-4x2 + 9x3) = 0

Reorder the terms:
8x2 + -4x2 + -5x3 + 9x3 = 0

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

Combine like terms: -5x3 + 9x3 = 4x3
4x2 + 4x3 = 0

Solving
4x2 + 4x3 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '4x2'.
4x2(1 + x) = 0

Ignore the factor 4.

Subproblem 1

Set the factor 'x2' equal to zero and attempt to solve: Simplifying x2 = 0 Solving x2 = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x2 = 0 Take the square root of each side: x = {0}

Subproblem 2

Set the factor '(1 + x)' equal to zero and attempt to solve: Simplifying 1 + x = 0 Solving 1 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + x = 0 + -1 x = 0 + -1 Combine like terms: 0 + -1 = -1 x = -1 Simplifying x = -1

Solution

x = {0, -1}

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