Question

Expand the following ; (a) (2a+b-c)^2 (b) (x+2y)^3​

Answer 1

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....

Answer 2

Answer:

a) 4a^2 + b^2 + c^2 +4ab + 2bc + 4ca

b) x^3 + 6x^2y + 12xy^2 + 8y63

Step-by-step explanation: