5x^2+40x=-75

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Solution for 5x^2+40x=-75 equation:


Simplifying
5x2 + 40x = -75

Reorder the terms:
40x + 5x2 = -75

Solving
40x + 5x2 = -75

Solving for variable 'x'.

Reorder the terms:
75 + 40x + 5x2 = -75 + 75

Combine like terms: -75 + 75 = 0
75 + 40x + 5x2 = 0

Factor out the Greatest Common Factor (GCF), '5'.
5(15 + 8x + x2) = 0

Factor a trinomial.
5((5 + x)(3 + x)) = 0

Ignore the factor 5.

Subproblem 1

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

Subproblem 2

Set the factor '(3 + x)' equal to zero and attempt to solve: Simplifying 3 + x = 0 Solving 3 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + x = 0 + -3 x = 0 + -3 Combine like terms: 0 + -3 = -3 x = -3 Simplifying x = -3

Solution

x = {-5, -3}

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