Answer:
2x^2-2x
Step by Step Explanation:
The 2 x^2 come together to form 2x^2 and since there is no other number that has x but no ^2 -2x stays the same.
Answer:
A. Cylinder, Shpere, Cone
Step-by-step explanation:
a cylander can be made by rotating a square.
for a sphere, a semi-circle.
for a cone, a right triangle.
hope this helped you
Add them all up and if they add up to 180 then your side lengths are good