Suppose that the functions r and s are defined for all real numbers x as follows.

Question

r(x)=5x²

s(x)=x³

^

Write the expressions for (r-s)(x) and (r+s)(x) and evaluate (r·s)(−1)

.

(r-s)(x)=
(r+s)(x)=
(r·s)(-1)=

Answer 1