Question

Use synthetic substitution to evaluate the polynomial for the given value x = -8.
P(x) = x2 - x - 30
P(-8) =

Answer 1

42

Answer 2

how, can you explain it to me. Im like struggling with these :/

Answer 3

replace x with -8:
\[(-8)^{2}-(-8)-30=64+8-30=72-30=42\]

Answer 4

thank you so much! (: