I found this on an app I used it by completing the square but it didn't show this
Step-by-step explanation:
(a+b)(a+b)² = (a+b)(a²+2ab+b²)
=a(a²+2ab+b²) + b(a²+2ab+b²)
= a³+2a²b+ab² + a²b+2ab²+b³
=a³+2a²b+ a²b+ab² +2ab²+b³
=a³+3a²b+3ab²+b³
Answer:
y = 2/x
Step-by-step explanation:
You cannot divide by zero because you will get an undefined value, and this will create a hole in the graph.
Answer:
96π cm²
Step-by-step explanation:
Use the formula for the surface area of a cylinder:
A = 2πrh + 2πr²
Plug in the height and radius, and solve:
A = 2π(4)(8) + 2π(4)²
A = 2π(32) + 2π(16)
A = 64π + 32π
A = 96π
So, the surface area of the cylinder is 96π cm²