54=x^2+3x

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Solution for 54=x^2+3x equation:


Simplifying
54 = x2 + 3x

Reorder the terms:
54 = 3x + x2

Solving
54 = 3x + x2

Solving for variable 'x'.

Reorder the terms:
54 + -3x + -1x2 = 3x + -3x + x2 + -1x2

Combine like terms: 3x + -3x = 0
54 + -3x + -1x2 = 0 + x2 + -1x2
54 + -3x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
54 + -3x + -1x2 = 0

Factor a trinomial.
(6 + -1x)(9 + x) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(9 + x)' equal to zero and attempt to solve: Simplifying 9 + x = 0 Solving 9 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + x = 0 + -9 x = 0 + -9 Combine like terms: 0 + -9 = -9 x = -9 Simplifying x = -9

Solution

x = {6, -9}

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