Suppose the following qxx26 Find the following qr7 rq7Soluti

Suppose the following:

q(x)=x²+6

Find the following:

(q*r)(7)=

(r*q)(7)=

Solution

given q(x)=x²+6

r(x)=(x+9)

Find the following:

(q*r)(7)=q(7)*r(7)

(q*r)(7)=(7²+6)*((7+9))

(q*r)(7)=(49+6)*(16)

(q*r)(7)=(55)*(4)

(q*r)(7)=220

(r*q)(7)=r(7)*q(7)

(r*q)(7)=((7+9))*(7²+6)

(r*q)(7)=(16)*(49+6)

(r*q)(7)=4*55

(r*q)(7)=220