Answer:
(x^2 + 3)(x + 1).
Step-by-step explanation:
x^3 + x^2 + 3x + 3
= x^2(x + 1) + 3(x + 1)
= (x^2 + 3)(x + 1).
x^2 = 2x + 15
x^2 -2x - 15 = 0
Factor:
(x-5)(x+3) = 0
x = 5 or x = -3
if it is find the value of x her it is
12
diameter is 2r
r=6
6*2=12
