X(2X-3)=90

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Solution for X(2X-3)=90 equation:


Simplifying
X(2X + -3) = 90

Reorder the terms:
X(-3 + 2X) = 90
(-3 * X + 2X * X) = 90
(-3X + 2X2) = 90

Solving
-3X + 2X2 = 90

Solving for variable 'X'.

Reorder the terms:
-90 + -3X + 2X2 = 90 + -90

Combine like terms: 90 + -90 = 0
-90 + -3X + 2X2 = 0

Factor a trinomial.
(-6 + -1X)(15 + -2X) = 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 '(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

Solution

X = {-6, 7.5}

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