-18x=-4x^2+36

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Solution for -18x=-4x^2+36 equation:


Simplifying
-18x = -4x2 + 36

Reorder the terms:
-18x = 36 + -4x2

Solving
-18x = 36 + -4x2

Solving for variable 'x'.

Reorder the terms:
-36 + -18x + 4x2 = 36 + -4x2 + -36 + 4x2

Reorder the terms:
-36 + -18x + 4x2 = 36 + -36 + -4x2 + 4x2

Combine like terms: 36 + -36 = 0
-36 + -18x + 4x2 = 0 + -4x2 + 4x2
-36 + -18x + 4x2 = -4x2 + 4x2

Combine like terms: -4x2 + 4x2 = 0
-36 + -18x + 4x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-18 + -9x + 2x2) = 0

Factor a trinomial.
2((-3 + -2x)(6 + -1x)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-3 + -2x)' equal to zero and attempt to solve: Simplifying -3 + -2x = 0 Solving -3 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -2x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -2x = 0 + 3 -2x = 0 + 3 Combine like terms: 0 + 3 = 3 -2x = 3 Divide each side by '-2'. x = -1.5 Simplifying x = -1.5

Subproblem 2

Set the factor '(6 + -1x)' equal to zero and attempt to solve: Simplifying 6 + -1x = 0 Solving 6 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1x = 0 + -6 -1x = 0 + -6 Combine like terms: 0 + -6 = -6 -1x = -6 Divide each side by '-1'. x = 6 Simplifying x = 6

Solution

x = {-1.5, 6}

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