You basically plug in numbers..I will use positive integers.
You basically plug in numbers for x to find the y .
0,1
1,-2
2,-5
3,-8 and so on
Solve for x over the real numbers:
x^3 (x^2 - 4) = 0
Split into two equations:
x^3 = 0 or x^2 - 4 = 0
Take cube roots of both sides:
x = 0 or x^2 - 4 = 0
Add 4 to both sides:
x = 0 or x^2 = 4
Take the square root of both sides:
Answer: x = 0 or x = 2 or x = -2
276.46 is the surface area of the cylinder