Question

Evaluate , using suitable identity for 213x187

Answer 1

Hey mate..
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Given,

213 × 187

=> ( 200 + 13 ) ( 200 - 13 )

Using the identity ,

$(a + b)(a - b) = a^{2} - b {}^{2}$


=> (200) ^2 - (13)^2

=> 40000 - 169

=> 39831

#racks

Answer 2

           213
         x187
         ____ 
         1491
       17040
    + 21300
   ________
       39831

                Ans = 39831


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