=42x^2-23x-5

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Solution for =42x^2-23x-5 equation:


Simplifying
0 = 42x2 + -23x + -5

Reorder the terms:
0 = -5 + -23x + 42x2

Solving
0 = -5 + -23x + 42x2

Solving for variable 'x'.

Combine like terms: 0 + 5 = 5
5 + 23x + -42x2 = -5 + -23x + 42x2 + 5 + 23x + -42x2

Reorder the terms:
5 + 23x + -42x2 = -5 + 5 + -23x + 23x + 42x2 + -42x2

Combine like terms: -5 + 5 = 0
5 + 23x + -42x2 = 0 + -23x + 23x + 42x2 + -42x2
5 + 23x + -42x2 = -23x + 23x + 42x2 + -42x2

Combine like terms: -23x + 23x = 0
5 + 23x + -42x2 = 0 + 42x2 + -42x2
5 + 23x + -42x2 = 42x2 + -42x2

Combine like terms: 42x2 + -42x2 = 0
5 + 23x + -42x2 = 0

Factor a trinomial.
(5 + -7x)(1 + 6x) = 0

Subproblem 1

Set the factor '(5 + -7x)' equal to zero and attempt to solve: Simplifying 5 + -7x = 0 Solving 5 + -7x = 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 + -7x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -7x = 0 + -5 -7x = 0 + -5 Combine like terms: 0 + -5 = -5 -7x = -5 Divide each side by '-7'. x = 0.7142857143 Simplifying x = 0.7142857143

Subproblem 2

Set the factor '(1 + 6x)' equal to zero and attempt to solve: Simplifying 1 + 6x = 0 Solving 1 + 6x = 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 + 6x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 6x = 0 + -1 6x = 0 + -1 Combine like terms: 0 + -1 = -1 6x = -1 Divide each side by '6'. x = -0.1666666667 Simplifying x = -0.1666666667

Solution

x = {0.7142857143, -0.1666666667}

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