find the value of k if xy^2k = ( 4xy + 3y )^2 - ( 4xy - 3y )^2
Answers
Answered by
70
(4x+3y)²-(4x-3y)²
(4x+3y+4x-3y)(4x+3y-4x+3y)
(8x)(6y)
48xy
(4x+3y+4x-3y)(4x+3y-4x+3y)
(8x)(6y)
48xy
MannatArora1421:
it will be 6y instead of 9y buddy... and the answer then is 48
thanks
wlcm
anything more to ask
nothing yet.... but will surely ask if i will have any sort of problems ☺
ok
can u tell me which identity is used here
a^2-b^2
Answered by
37
Answer:
hope this answer helps you
Attachments:
Similar questions