-(3*x*x)+(2*x)+5=0

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Solution for -(3*x*x)+(2*x)+5=0 equation:


Simplifying
-1(3x * x) + (2x) + 5 = 0

Multiply x * x
-1(3x2) + (2x) + 5 = 0

Remove parenthesis around (3x2)
-1 * 3x2 + (2x) + 5 = 0

Multiply -1 * 3
-3x2 + (2x) + 5 = 0

Reorder the terms:
5 + (2x) + -3x2 = 0

Solving
5 + (2x) + -3x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(5 + -3x)(1 + x) = 0

Subproblem 1

Set the factor '(5 + -3x)' equal to zero and attempt to solve: Simplifying 5 + -3x = 0 Solving 5 + -3x = 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 + -3x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -3x = 0 + -5 -3x = 0 + -5 Combine like terms: 0 + -5 = -5 -3x = -5 Divide each side by '-3'. x = 1.666666667 Simplifying x = 1.666666667

Subproblem 2

Set the factor '(1 + x)' equal to zero and attempt to solve: Simplifying 1 + x = 0 Solving 1 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + x = 0 + -1 x = 0 + -1 Combine like terms: 0 + -1 = -1 x = -1 Simplifying x = -1

Solution

x = {1.666666667, -1}

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