0=3x^2+20x-7

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Solution for 0=3x^2+20x-7 equation:


Simplifying
0 = 3x2 + 20x + -7

Reorder the terms:
0 = -7 + 20x + 3x2

Solving
0 = -7 + 20x + 3x2

Solving for variable 'x'.

Combine like terms: 0 + 7 = 7
7 + -20x + -3x2 = -7 + 20x + 3x2 + 7 + -20x + -3x2

Reorder the terms:
7 + -20x + -3x2 = -7 + 7 + 20x + -20x + 3x2 + -3x2

Combine like terms: -7 + 7 = 0
7 + -20x + -3x2 = 0 + 20x + -20x + 3x2 + -3x2
7 + -20x + -3x2 = 20x + -20x + 3x2 + -3x2

Combine like terms: 20x + -20x = 0
7 + -20x + -3x2 = 0 + 3x2 + -3x2
7 + -20x + -3x2 = 3x2 + -3x2

Combine like terms: 3x2 + -3x2 = 0
7 + -20x + -3x2 = 0

Factor a trinomial.
(1 + -3x)(7 + x) = 0

Subproblem 1

Set the factor '(1 + -3x)' equal to zero and attempt to solve: Simplifying 1 + -3x = 0 Solving 1 + -3x = 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 + -3x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -3x = 0 + -1 -3x = 0 + -1 Combine like terms: 0 + -1 = -1 -3x = -1 Divide each side by '-3'. x = 0.3333333333 Simplifying x = 0.3333333333

Subproblem 2

Set the factor '(7 + x)' equal to zero and attempt to solve: Simplifying 7 + x = 0 Solving 7 + x = 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 + x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + x = 0 + -7 x = 0 + -7 Combine like terms: 0 + -7 = -7 x = -7 Simplifying x = -7

Solution

x = {0.3333333333, -7}

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