Question

Evaluate the product by using suitable identity ( without multiplying directly)​

Answer 1

Answer:

=> 11021. (90 + 5) (90 + 6) by using identity :- (x + a) (x + b) = x² + (a+b)*x + ab. x = 90 , a = 5 , b = 6. Now put value of x , a & b. => (90)² + (5+6)*90 + (5*6) ...

=> 9120. (iii)104×96. (100 + 4) (100 - 4) by using identity :- (x + a) (x + b) = x² + (a+b)*x + ab. x = 100 , a = 4 , b = (-4) ...

=> 9984.

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Step-by-step explanation: