Evaluate each polynomial for the given value. 3m/8-2m^3 for m=-1

Question

I need help with this please. Thanks.

Answer 1

Rewriting the polynomial 3m/8-2m^3 in standard form:

f(m) = -2m³ + (3/8)m, Find the value of f(m) for m = -1.

f(-1) = -2(-1)³ + (3/8)(-1) = +2 + (-3/8) = 16/8 - 3/8 = 13/8 = 1.625