find the following using identities:- a. (16)²-(14)²
b. (121)*(255)
Answers
Answered by
2
a . (16)² - ( 14)²
We know that , ( a)² - (b)² = ( a + b ) ( a - b ).
So,
(16)² - (14)²
=> ( 16 + 14 ) ( 16 - 14 )
=> 30 × 2
=> 60
b . 121 × 255
=> (30855)
We know that , ( a)² - (b)² = ( a + b ) ( a - b ).
So,
(16)² - (14)²
=> ( 16 + 14 ) ( 16 - 14 )
=> 30 × 2
=> 60
b . 121 × 255
=> (30855)
Similar questions