Answer:
sum of the polynomials is 
Step-by-step explanation:
Given polynomial is (7 x^3– 4 x^2) + (2 x^3 +3 x)
adding x^3 terms, now we get


Therefore the sum of given polynomial is

Answer:
D. Rectangular prism
Step-by-step explanation:
I believe the answer is D. Rectangular prism
Answer:
5
(5t-7)(25
+35t+49)
Step-by-step explanation:
Answer: I don't see what your talking about here, so I can't help you.
Step-by-step explanation:
D
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