Question

please can anybody solve this problem ​

Answer 1

Answer:

this is ur answer

just use (a+b)^2 = a^2 +2ab+ b^2

where a= (a+2b) and b=(a-2b).

hope this helps u.

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Answer 2

Answer:

4a^2

Step-by-step explanation:

(a+2b)^2=a^2+4b^2+4ab

2(a+2b)(a-2b)=2a^2-8b^2

(a-2b)^2=a^2+4b^2-4ab

=4a^2

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