using a^2 - b^2 = ( a+b)(a-b) find 11^2 - 9^2
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Hi
( 11 + 9 ) ( 11 - 9 )
That is the answer !
Have a nice weekend :)
( 11 + 9 ) ( 11 - 9 )
That is the answer !
Have a nice weekend :)
sandra19:
thank u for trying but r u sure this is the answer?
Yes :)
yes it is right
Answered by
1
11+9×11-9
20×2=40 ans
20×2=40 ans
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