hello sir

Asked by meherdhingra | 19th Feb, 2009, 09:32: AM

Expert Answer:

a2 - b 2 = (a+b) (a-b) = (4) (  5 -  5 / 2 ) = 4 5 - 2  10

Answered by  | 19th Feb, 2009, 08:03: PM

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