Answer:
1) (105)2 =(100+5)2
using, (a+b)2 =a2 +b2 −2ab
=(100)2 +(5)2 +2(5)(100)
=10000+25+1000
=11025.
2) (97)2 = (100−3)2
using, (a−b)2 =a2 −2ab+b2
=(100)2 −2(100)3+(3)2
=10000−600+9
=9409
Hope this is helpful for you. ☺️
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Answers & Comments
Answer:
1) (105)2 =(100+5)2
using, (a+b)2 =a2 +b2 −2ab
=(100)2 +(5)2 +2(5)(100)
=10000+25+1000
=11025.
2) (97)2 = (100−3)2
using, (a−b)2 =a2 −2ab+b2
=(100)2 −2(100)3+(3)2
=10000−600+9
=9409
Hope this is helpful for you. ☺️