algebra

Simplify the following algebraic expressions:

Evaluate;
P(-1/2) if P(x)= 2X^4 + X^3 + 12

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  1. P(-1/2) = 2(-1/2)^4 + (-1/2)^3 + 12,
    P(-1/2) = 1/8 - 1/8 + 12 = 12.

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