X(2X+13)=45

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Solution for X(2X+13)=45 equation:


Simplifying
X(2X + 13) = 45

Reorder the terms:
X(13 + 2X) = 45
(13 * X + 2X * X) = 45
(13X + 2X2) = 45

Solving
13X + 2X2 = 45

Solving for variable 'X'.

Reorder the terms:
-45 + 13X + 2X2 = 45 + -45

Combine like terms: 45 + -45 = 0
-45 + 13X + 2X2 = 0

Factor a trinomial.
(-9 + -1X)(5 + -2X) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(5 + -2X)' equal to zero and attempt to solve: Simplifying 5 + -2X = 0 Solving 5 + -2X = 0 Move all terms containing X to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -2X = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -2X = 0 + -5 -2X = 0 + -5 Combine like terms: 0 + -5 = -5 -2X = -5 Divide each side by '-2'. X = 2.5 Simplifying X = 2.5

Solution

X = {-9, 2.5}

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