find the values using identity 93×107, 199x199
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Answer:
93x107 = 9,951 and 199X199 = 39,799
Step-by-step explanation :-
( 93 X 107)
(100 - 7) (100+ 7)
= ( a+b) (a-b) = a² - b²
(100-7)(100+7) = (100)² - (7)²
= 10000 - 49
= 9951
Hence, 93X107 = 9,951
(199X199)
199X199 = (200-1)(200-1)
= (200-1)²
(200-1)² = a² - 2ab + b²
= (200)² - 2X 200X 1 + (1)²
= 40000 - 200 +1
= 40000- 201
= 39,799
Hence, 199X199 = 39,799
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