Math, asked by rekhabhanawat123, 8 months ago

BY USING SUITABLE identity ,evaluate the following : 97×85

Answers

Answered by riya123470

1

Step-by-step explanation:

(95×85)

(x-a)(x-b) = (x^2)-x (a+b)+ab

= (100-5)(100-15) = (100^2)-100 (5+15)+5*15

= 10000-100 (5+15)+75

= 10000-2000+75

= 8000+75

= 8075

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