(998)^2 using identities solve
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6
(998)²
It can also be written as
(1000-2)²
[Using the identity (a-b)²=a²+b²-2ab]
where a=1000, b=2
(1000)²+(2)²+2× 1000× 2
1000000 + 4 - 4000
1000004-4000
996004
So,
(998)²=(1000-2)²=996004
It's the required answer
It can also be written as
(1000-2)²
[Using the identity (a-b)²=a²+b²-2ab]
where a=1000, b=2
(1000)²+(2)²+2× 1000× 2
1000000 + 4 - 4000
1000004-4000
996004
So,
(998)²=(1000-2)²=996004
It's the required answer
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