Question

(2a+b) Square expanded this ​

Answer 1

Answer:

(2a + b)2 = (2a)2 + (b)2 + 2 × 2a × b

[_ (a + b)2 = a2 + b2 + 2ab]

= 4a2 + b2 + 4ab

Step-by-step explanation:

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Answer 2

Answer:

4a^2 + b^2 + 2ab

Step-by-step explanation:

Given:

• expand: (2a+b)^2

solution:

(2a)^2 + b^2 + 2 × b

using identity:

[ (a+b)^2 = a^2 + b^2 +2ab) ]

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

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