(-x)(3x+2)=5

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Solution for (-x)(3x+2)=5 equation:


Simplifying
(-1x)(3x + 2) = 5

Remove parenthesis around (-1x)
-1x(3x + 2) = 5

Reorder the terms:
-1x(2 + 3x) = 5
(2 * -1x + 3x * -1x) = 5
(-2x + -3x2) = 5

Solving
-2x + -3x2 = 5

Solving for variable 'x'.

Reorder the terms:
-5 + -2x + -3x2 = 5 + -5

Combine like terms: 5 + -5 = 0
-5 + -2x + -3x2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(5 + 2x + 3x2) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(5 + 2x + 3x2)' equal to zero and attempt to solve: Simplifying 5 + 2x + 3x2 = 0 Solving 5 + 2x + 3x2 = 0 Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. 1.666666667 + 0.6666666667x + x2 = 0 Move the constant term to the right: Add '-1.666666667' to each side of the equation. 1.666666667 + 0.6666666667x + -1.666666667 + x2 = 0 + -1.666666667 Reorder the terms: 1.666666667 + -1.666666667 + 0.6666666667x + x2 = 0 + -1.666666667 Combine like terms: 1.666666667 + -1.666666667 = 0.000000000 0.000000000 + 0.6666666667x + x2 = 0 + -1.666666667 0.6666666667x + x2 = 0 + -1.666666667 Combine like terms: 0 + -1.666666667 = -1.666666667 0.6666666667x + x2 = -1.666666667 The x term is 0.6666666667x. Take half its coefficient (0.3333333334). Square it (0.1111111112) and add it to both sides. Add '0.1111111112' to each side of the equation. 0.6666666667x + 0.1111111112 + x2 = -1.666666667 + 0.1111111112 Reorder the terms: 0.1111111112 + 0.6666666667x + x2 = -1.666666667 + 0.1111111112 Combine like terms: -1.666666667 + 0.1111111112 = -1.5555555558 0.1111111112 + 0.6666666667x + x2 = -1.5555555558 Factor a perfect square on the left side: (x + 0.3333333334)(x + 0.3333333334) = -1.5555555558 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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