A18
B16
C20
D22
Answer:
18
Related Questions:
What is the degree of p(x)+q(x):
p(x)=4x4+3x2+6x+9p(x)=4x^4+3x^2+6x+9p(x)=4x4+3x2+6x+9,q(x)=5x4+6x3+8q(x)=5x^4+6x^3+8q(x)=5x4+6x3+8