what is the suitable identity for this ?????
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Answered by
2
hi dear.
the suitable identity for this is
( a+b) (a-b) = a^2 - b^2
so the ans. is
(3t)^2 - 95^2
9t^2 - 9025
I hope you get the ans.
THANK YOU
the suitable identity for this is
( a+b) (a-b) = a^2 - b^2
so the ans. is
(3t)^2 - 95^2
9t^2 - 9025
I hope you get the ans.
THANK YOU
mysticd:
It is 9s not 95
But I wrote square of 3t as 9t^2
Answered by
2
Hi ,
******************************
We know the algebraic identity,
( x + y ) ( x - y ) = x² - y²
*******************************
( 3t + 9s ) ( 3t - 9s )
= ( 3t )² - ( 9s )²
= 9t² - 81s²
I hope this helps you.
:)
******************************
We know the algebraic identity,
( x + y ) ( x - y ) = x² - y²
*******************************
( 3t + 9s ) ( 3t - 9s )
= ( 3t )² - ( 9s )²
= 9t² - 81s²
I hope this helps you.
:)
but it's 95 not 9s
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