Using identities evaluate , 100^2-97^2
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Answered by
1
Answer:
100^2-97^2
(100+97)(100-97)
197×3
591
Answered by
2
Answer:
use (a^2 - b^2) formula
(a^2 - b^2) = (a + b) (a - b)
(100)^2 - (97)^2 = (100+97) (100-97)
= 197 × 3
= 584
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