Expand the following ; (a) (2a+b-c)^2 (b) (x+2y)^3
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Answered by
3
Step-by-step explanation:
a) (2a+b-c)2 =
(2a+b-c)^2
(2a)^2+(b)^2-(c)^2+2×2a×b+2×b×-c+2×-c×2a
4a^2+b^2+c^2+4ab-2bc-4ac
b)(X+2y)3=
I am really sorry bro...
I could not find the second one..
hope this helps u....
Answered by
1
Answer:
a) 4a^2 + b^2 + c^2 +4ab + 2bc + 4ca
b) x^3 + 6x^2y + 12xy^2 + 8y63
Step-by-step explanation:
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