What is the simplest form of the following expression?
13r + 13r2 – r3 + 2r3 + r – 7r2
A
r3 + 6r2 + 14r
B
r3 + 6r2 - 14r
C
-r3 - 6r2 - 14r
D
r3 - 6r2 - 14r
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Answer:
the answer will be:-
A
r3 + 6r2 + 14r
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