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Today, 05:11

What are the four steps for solving a polynomial equation

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  1. Today, 06:02
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    1) Simplify each side (if needed)

    2) Write the equation in Standard Form

    3) Factor

    4) Zero-Product Principle

    Step-by-step explanation:

    1) Simplify: Try and simplify the equation if possible

    2) Get the equation in standard form

    Example-

    x^3 - 4x - 8 = - 2x^2

    x^3 + 2x^2-4x - 8 = 0

    3) Factor (by grouping)

    Example-

    x^3 + 2x^2 - 4x - 8 = 0

    x^2 (x+2) - 4 (x+2) = 0

    (group together the coefficients)

    (x+2) (x^2-4)

    (x+2) (x+2) (x-2)

    4) Zero-Product Principle: Set each factor group equal to zero

    Example-

    x+2=0

    x=-2

    x-2=0

    x=2

    Side Note: If the question is a quadratic, you can always solve by doing the quadratic formula.
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