( a + 2b + c )^2 expand
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Answered by
9
Here is your answer~
(a^2+4b^2+c^2).2(a+2b+c)
umardeen786:
how
Answered by
11
Answer:
Step-by-step explanation:
a^2+4b^2+c^2+2(2ab+2bc+ca)
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