4(x-y)^2-12(x-y)(x+y)+9(x+y)^2
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Rithikakrovvidi1:
but how you got the first step?It Is little was confusing!
no u just need to open squares
bt hw u got 4x^2+4y^2
open square and the multiply inside with 4
tq
np bro anytime
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