Math, asked by umaimahh1809, 1 day ago

Using special expansions, find the values of:
i. (105)²
ii. (87)²

Answers

Answered by correialydia3111

1

Step-by-step explanation:

105 x 105 = 11025

87 x 87 = 7569

Answered by aryadwivedi10

11

Answer:

(105) ² =(100+5)²

( using [(a+b)² =a²+b²-2ab] )

=(100)² +(5)² +2(5)(100)

=10000+25+1000

=11025

______________________

87²

=: (100 - 13)²

==: 10000 + 169 - 2600

==: 7569

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