2x^2=-30x-100

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Solution for 2x^2=-30x-100 equation:


Simplifying
2x2 = -30x + -100

Reorder the terms:
2x2 = -100 + -30x

Solving
2x2 = -100 + -30x

Solving for variable 'x'.

Reorder the terms:
100 + 30x + 2x2 = -100 + -30x + 100 + 30x

Reorder the terms:
100 + 30x + 2x2 = -100 + 100 + -30x + 30x

Combine like terms: -100 + 100 = 0
100 + 30x + 2x2 = 0 + -30x + 30x
100 + 30x + 2x2 = -30x + 30x

Combine like terms: -30x + 30x = 0
100 + 30x + 2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(50 + 15x + x2) = 0

Factor a trinomial.
2((10 + x)(5 + x)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(10 + x)' equal to zero and attempt to solve: Simplifying 10 + x = 0 Solving 10 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + x = 0 + -10 Combine like terms: 10 + -10 = 0 0 + x = 0 + -10 x = 0 + -10 Combine like terms: 0 + -10 = -10 x = -10 Simplifying x = -10

Subproblem 2

Set the factor '(5 + x)' equal to zero and attempt to solve: Simplifying 5 + x = 0 Solving 5 + x = 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 + x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + x = 0 + -5 x = 0 + -5 Combine like terms: 0 + -5 = -5 x = -5 Simplifying x = -5

Solution

x = {-10, -5}

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