contestada

Find (ros)(z).
r(x) = x + 1
=
s(x) = 5x
)
Write your answer as a polynomial in z, in simplest form.
(ros)(z)
=

Respuesta :

Answer:

(r*s) = (x-5)(2x+6) = 2x2 + 6x - 10x - 30 = 2x2 - 4x - 30

(r-s)(x) = x-5 - (2x+6) = x - 5 - 2x - 6 = -x - 11

(r+s)(x) = x - 5 + 2x + 6 = 3x + 1

(r + s)(3) = 3(3) + 1 = 9 + 1 = 10

Step-by-step explanation: