find the square of (x-y)? using this, find the square of 97?
Answers
Answered by
5
Finding ( x - y ) ²
x² - 2xy + y²
• 97 can be written as ( 100 - 3 )
Using the above identity
( 100 ) ² - 2 x 100 x 3 + ( 3 ) ²
10000 - 600 + 9
106009 ➡ Answer
Answered by
1
Answer:
9409
Step-by-step explanation:
( x - y )^2 = x^2 + y^2 - 2xy
97^2
= ( 100 - 3 )^2
= 100^2 + 3^2 - 2 ( 3 ) ( 100 )
= 10000 + 9 - 600
= 10000 - 600 + 9
= 9400 + 9
= 9409
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