Answer:
Step-by-step explanation:
A=r×r
64=r×rبالجذر
r=8
d
b
a
c
degree 1 - 5x+5 - d.
degree 2- 3x^2-2x+4- b.
degree 3 - 1/2x^3+8x^2-3- a.
degree 4 - x^4+(x+4)^2- c
