Question

${(a + b)}^{2}$
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Answer 1

Answer:

the answer is a²+2ab+b²

Step-by-step explanation:

the explanation is in the picture.

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Answer 2

To solve : $(a + b )^{2}$

Solution :

• To solve the above expression we know that it is a form of identity , therefore to derive identity we expand the given expression .  
• As it is given square of expression we write expression as multiplying by it self .

• $(a + b )^{2}$  

       $= (a + b )(a +b)$

       $= a^{2}+ab+ab +b^{2} \\= a^{2} +2ab+b^{2}$

Hence , expansion is $(a + b )^{2}$ $= a^{2} + 2ab+b^{2}$ .