x(2x-3)+45=180

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Solution for x(2x-3)+45=180 equation:


Simplifying
x(2x + -3) + 45 = 180

Reorder the terms:
x(-3 + 2x) + 45 = 180
(-3 * x + 2x * x) + 45 = 180
(-3x + 2x2) + 45 = 180

Reorder the terms:
45 + -3x + 2x2 = 180

Solving
45 + -3x + 2x2 = 180

Solving for variable 'x'.

Reorder the terms:
45 + -180 + -3x + 2x2 = 180 + -180

Combine like terms: 45 + -180 = -135
-135 + -3x + 2x2 = 180 + -180

Combine like terms: 180 + -180 = 0
-135 + -3x + 2x2 = 0

Factor a trinomial.
(-15 + -2x)(9 + -1x) = 0

Subproblem 1

Set the factor '(-15 + -2x)' equal to zero and attempt to solve: Simplifying -15 + -2x = 0 Solving -15 + -2x = 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 + -2x = 0 + 15 Combine like terms: -15 + 15 = 0 0 + -2x = 0 + 15 -2x = 0 + 15 Combine like terms: 0 + 15 = 15 -2x = 15 Divide each side by '-2'. x = -7.5 Simplifying x = -7.5

Subproblem 2

Set the factor '(9 + -1x)' equal to zero and attempt to solve: Simplifying 9 + -1x = 0 Solving 9 + -1x = 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 + -1x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1x = 0 + -9 -1x = 0 + -9 Combine like terms: 0 + -9 = -9 -1x = -9 Divide each side by '-1'. x = 9 Simplifying x = 9

Solution

x = {-7.5, 9}

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