3x(x-9)=9x^2-28x

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Solution for 3x(x-9)=9x^2-28x equation:


Simplifying
3x(x + -9) = 9x2 + -28x

Reorder the terms:
3x(-9 + x) = 9x2 + -28x
(-9 * 3x + x * 3x) = 9x2 + -28x
(-27x + 3x2) = 9x2 + -28x

Reorder the terms:
-27x + 3x2 = -28x + 9x2

Solving
-27x + 3x2 = -28x + 9x2

Solving for variable 'x'.

Reorder the terms:
-27x + 28x + 3x2 + -9x2 = -28x + 9x2 + 28x + -9x2

Combine like terms: -27x + 28x = 1x
1x + 3x2 + -9x2 = -28x + 9x2 + 28x + -9x2

Combine like terms: 3x2 + -9x2 = -6x2
1x + -6x2 = -28x + 9x2 + 28x + -9x2

Reorder the terms:
1x + -6x2 = -28x + 28x + 9x2 + -9x2

Combine like terms: -28x + 28x = 0
1x + -6x2 = 0 + 9x2 + -9x2
1x + -6x2 = 9x2 + -9x2

Combine like terms: 9x2 + -9x2 = 0
1x + -6x2 = 0

Factor out the Greatest Common Factor (GCF), 'x'.
x(1 + -6x) = 0

Subproblem 1

Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0

Subproblem 2

Set the factor '(1 + -6x)' equal to zero and attempt to solve: Simplifying 1 + -6x = 0 Solving 1 + -6x = 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 + -6x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -6x = 0 + -1 -6x = 0 + -1 Combine like terms: 0 + -1 = -1 -6x = -1 Divide each side by '-6'. x = 0.1666666667 Simplifying x = 0.1666666667

Solution

x = {0, 0.1666666667}

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