evaluate using an identity..(i) 103 X 107 (ii) (998) whole cube
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Answered by
7
=(100+3)(100-3)
=(100)²- (3)²
= 10000-9
=9991
hope it help ☺
plez mark brainliest..
=(100)²- (3)²
= 10000-9
=9991
hope it help ☺
plez mark brainliest..
Answered by
4
Hey!!!
1. 103 * 107
=> (105-2)(105+2)
Here will use the identity (a - b)(a + b) = a² - b²
=> (105)² - 2²
=>(100 + 5)² - 4
=> 10000 + 25 + 1000 - 4
=>10000 + 1021
=> 101021
Solve the other by yourself
998³ = (1000 - 2)³
1. 103 * 107
=> (105-2)(105+2)
Here will use the identity (a - b)(a + b) = a² - b²
=> (105)² - 2²
=>(100 + 5)² - 4
=> 10000 + 25 + 1000 - 4
=>10000 + 1021
=> 101021
Solve the other by yourself
998³ = (1000 - 2)³
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