Question

verify the formula :
$(a - b)^ {2}$
​

Answer 1

We observe that the area of square AEFH=(a-b)² square units.

Also, area of square AEFH

= area of square ABCD – area of rect. EBGF – area of rect. HFID – area of square FGCI

i. e., (a-b)² = a²-(a-b)b-(a-b)b-b²

=> (a-b)² =a²-ab+b²-ab+b²-b²

=> (a-b)² = (a² – 2ab+b²).

The identity (a-b)² = (a² – 2ab+b²) is verified.

Answer 2

Step-by-step explanation:

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