pls tell me step by step sol pls
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Answered by
2
Answer:
99^2-98^2 = ( 99 + 98) ( 99 - 98)
( 197) ( l )
= 197
Answered by
21
Answer:
501^2 = 251001 and 99^2 - 98^2 = 197
Step-by-step explanation:
501^2= ( 500+1) ^2
= 500^2 + 1^2 +2×500×1 { Using (a+b)^2 } property
= 250000+1+1000
= 251001
99^2-98^2= (99+98)×(99-98)
= 197×1 ( Using a^2-b^2 )
= 197
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