prealgebra

−x2 − 3x3 − x4

Evaluate each polynomial for x = 3 and for x = −3.

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  1. Exponent is indicated by "^".

    -x^2 - 3x^3 - x^4

    You need to use parentheses to indicate the formula more exactly. For example, is it (-x)^2 or -(x^2)? For the value of 3, it would be 9 or -9 respectively. Is the second term -3(x^3) or -(3x)^3?

    Get the idea?

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