9x^2+42x=-49

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Solution for 9x^2+42x=-49 equation:


Simplifying
9x2 + 42x = -49

Reorder the terms:
42x + 9x2 = -49

Solving
42x + 9x2 = -49

Solving for variable 'x'.

Reorder the terms:
49 + 42x + 9x2 = -49 + 49

Combine like terms: -49 + 49 = 0
49 + 42x + 9x2 = 0

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

Subproblem 1

Set the factor '(7 + 3x)' equal to zero and attempt to solve: Simplifying 7 + 3x = 0 Solving 7 + 3x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 3x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 3x = 0 + -7 3x = 0 + -7 Combine like terms: 0 + -7 = -7 3x = -7 Divide each side by '3'. x = -2.333333333 Simplifying x = -2.333333333

Subproblem 2

Set the factor '(7 + 3x)' equal to zero and attempt to solve: Simplifying 7 + 3x = 0 Solving 7 + 3x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 3x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 3x = 0 + -7 3x = 0 + -7 Combine like terms: 0 + -7 = -7 3x = -7 Divide each side by '3'. x = -2.333333333 Simplifying x = -2.333333333

Solution

x = {-2.333333333, -2.333333333}

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