(9x^2)+(12x^2)-45x=

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Solution for (9x^2)+(12x^2)-45x= equation:


Simplifying
(9x2) + (12x2) + -45x = 0

Reorder the terms:
-45x + (9x2) + (12x2) = 0

Combine like terms: (9x2) + (12x2) = 21x2
-45x + 21x2 = 0

Solving
-45x + 21x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3x'.
3x(-15 + 7x) = 0

Ignore the factor 3.

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 '(-15 + 7x)' equal to zero and attempt to solve: Simplifying -15 + 7x = 0 Solving -15 + 7x = 0 Move all terms containing x to the left, all other terms to the right. Add '15' to each side of the equation. -15 + 15 + 7x = 0 + 15 Combine like terms: -15 + 15 = 0 0 + 7x = 0 + 15 7x = 0 + 15 Combine like terms: 0 + 15 = 15 7x = 15 Divide each side by '7'. x = 2.142857143 Simplifying x = 2.142857143

Solution

x = {0, 2.142857143}

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