prealgebra
posted by kim .
−x2 − 3x3 − x4
Evaluate each polynomial for x = 3 and for x = −3.

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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