2x^2+11x=30

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Solution for 2x^2+11x=30 equation:


Simplifying
2x2 + 11x = 30

Reorder the terms:
11x + 2x2 = 30

Solving
11x + 2x2 = 30

Solving for variable 'x'.

Reorder the terms:
-30 + 11x + 2x2 = 30 + -30

Combine like terms: 30 + -30 = 0
-30 + 11x + 2x2 = 0

Factor a trinomial.
(-15 + -2x)(2 + -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 '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2

Solution

x = {-7.5, 2}

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