Simplify:
(2a+b+c)^2+(2a-b-c)^2
Answers
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Step-by-step explanation:
(2a+b-c)^2 + (2a-b-c)^2
= (4a-2c)^2 - 2[(2a-c)^2 - b^2]
= 16a^2 + 4c^2 - 16ac - 2[ 4a^2 + c^2 - 8ac - b^2 ]
= 8a^2 + 2c^2 + 2b^2
anushkakharia:
Answer: 8a^2+2b^2+2c^2+4bc
wrong answer yrrr
please check once more
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