Please tell the answer for the question number 21

Please tell the answer for the question number 21 JO 7 93 f (u - + (v - + (w - + (x - = O, find the value of 'Olve the following using the standard identity a: - b2 = (a—bi (a-bi

Please find below the solution to the asked query:

Question number 21 is missing so we solved for marked query :

We have :  107 $\times$ 93

= ( 100 + 7 ) $\times$ ( 100 - 7 )

We know identity : ( a - b ) ( a + b ) =  a² - b² ,So

= 100² - 7²

= 10000 - 49

= 9951                                                                 ( Ans )


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