Factories (X+y)^2-(x-y)^2
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Answered by
2
using a^2-b^2=(a+b)(a-b)
Let a=x+y
b=x-y
(x+y)^2-(x-y)^2
=(x+y-x+y)(x+y+x-y)
=2y×2x
=4xy
Let a=x+y
b=x-y
(x+y)^2-(x-y)^2
=(x+y-x+y)(x+y+x-y)
=2y×2x
=4xy
Answered by
3
heya friend ✌
(X+Y)^2-(X-Y)^2 (Question)
=>let as (X+Y)=a
and ,(X-Y)=b....
then.....a^2-b^2 as we know that a^2-b^2
=(a-b)(a+b)
=>now putting the value....
since a=X+Y,. and b=X-Y
=>X+Y-(X-Y)【X+Y+(x-y)】
=>(X+Y-X+Y)(X+Y+X-Y)
=>2Y×2X
=>4XY....Ans....
hope it help you...
@Rajukumar☺☺☺
(X+Y)^2-(X-Y)^2 (Question)
=>let as (X+Y)=a
and ,(X-Y)=b....
then.....a^2-b^2 as we know that a^2-b^2
=(a-b)(a+b)
=>now putting the value....
since a=X+Y,. and b=X-Y
=>X+Y-(X-Y)【X+Y+(x-y)】
=>(X+Y-X+Y)(X+Y+X-Y)
=>2Y×2X
=>4XY....Ans....
hope it help you...
@Rajukumar☺☺☺
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