Answer:
what prism exactly?
Step-by-step explanation:
repost the question with the prism
2x^2-3x^2-4+6
Subtract the base
x^2+2
Answer:
Step-by-step explanation:
Given
span of bridge 
height of span 
Equation of Parabola

i.e.


length of Arc





Answer:
4u^2-5u+7.
You just remove the parentheses because it's adding. If it were subtraction, you would need to distribute the minus.