(2x^2-7x^3)-(6x^2-9x^3)=

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Solution for (2x^2-7x^3)-(6x^2-9x^3)= equation:


Simplifying
(2x2 + -7x3) + -1(6x2 + -9x3) = 0

Remove parenthesis around (2x2 + -7x3)
2x2 + -7x3 + -1(6x2 + -9x3) = 0
2x2 + -7x3 + (6x2 * -1 + -9x3 * -1) = 0
2x2 + -7x3 + (-6x2 + 9x3) = 0

Reorder the terms:
2x2 + -6x2 + -7x3 + 9x3 = 0

Combine like terms: 2x2 + -6x2 = -4x2
-4x2 + -7x3 + 9x3 = 0

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

Solving
-4x2 + 2x3 = 0

Solving for variable 'x'.

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

Ignore the factor 2.

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 '(-2 + x)' equal to zero and attempt to solve: Simplifying -2 + x = 0 Solving -2 + x = 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 + x = 0 + 2 Combine like terms: -2 + 2 = 0 0 + x = 0 + 2 x = 0 + 2 Combine like terms: 0 + 2 = 2 x = 2 Simplifying x = 2

Solution

x = {0, 2}

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