find this identities (210)²
Answers
Answered by
23
Answer:
210 can be written as 200+10
(200+10)^2=(200)^2+(10)^2+2×200×10
=40000+100+4000
=44100.
Answered by
10
(200+10) square
A SQUARE + 2 A B + B SQUARE [FORMULATION]
200 square + 2* 200 * 10 + 10 square
40000 + 4000 + 100
44100
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