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12 May, 13:42

What is 13x + 4 and how do I solve it

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  1. 12 May, 13:55
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    Simplifying

    12x2 + - 13x + - 4 = 0

    Reorder the terms:

    -4 + - 13x + 12x2 = 0

    Solving

    -4 + - 13x + 12x2 = 0

    Solving for variable 'x'.

    Factor a trinomial.

    (-1 + - 4x) (4 + - 3x) = 0

    Subproblem 1

    Set the factor ' (-1 + - 4x) ' equal to zero and attempt to solve:

    Simplifying

    -1 + - 4x = 0

    Solving

    -1 + - 4x = 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 + - 4x = 0 + 1

    Combine like terms: - 1 + 1 = 0

    0 + - 4x = 0 + 1

    -4x = 0 + 1

    Combine like terms: 0 + 1 = 1

    -4x = 1

    Divide each side by '-4'.

    x = - 0.25

    Simplifying

    x = - 0.25

    Subproblem 2

    Set the factor ' (4 + - 3x) ' equal to zero and attempt to solve:

    Simplifying

    4 + - 3x = 0

    Solving

    4 + - 3x = 0

    Move all terms containing x to the left, all other terms to the right.

    Add '-4' to each side of the equation.

    4 + - 4 + - 3x = 0 + - 4

    Combine like terms: 4 + - 4 = 0

    0 + - 3x = 0 + - 4

    -3x = 0 + - 4

    Combine like terms: 0 + - 4 = - 4

    -3x = - 4

    Divide each side by '-3'.

    x = 1.333333333

    Simplifying

    x = 1.333333333

    Solution

    x = {-0.25, 1.333333333
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