7x^2+27x+42=-8x

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Solution for 7x^2+27x+42=-8x equation:


Simplifying
7x2 + 27x + 42 = -8x

Reorder the terms:
42 + 27x + 7x2 = -8x

Solving
42 + 27x + 7x2 = -8x

Solving for variable 'x'.

Reorder the terms:
42 + 27x + 8x + 7x2 = -8x + 8x

Combine like terms: 27x + 8x = 35x
42 + 35x + 7x2 = -8x + 8x

Combine like terms: -8x + 8x = 0
42 + 35x + 7x2 = 0

Factor out the Greatest Common Factor (GCF), '7'.
7(6 + 5x + x2) = 0

Factor a trinomial.
7((3 + x)(2 + x)) = 0

Ignore the factor 7.

Subproblem 1

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

Subproblem 2

Set the factor '(2 + x)' equal to zero and attempt to solve: Simplifying 2 + x = 0 Solving 2 + x = 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 + x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + x = 0 + -2 x = 0 + -2 Combine like terms: 0 + -2 = -2 x = -2 Simplifying x = -2

Solution

x = {-3, -2}

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