(2+x-2y)² plees solv this question i
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((2+x)-2y)^2
= (2+x)^2+4y^2-2(2+x)(2y)
= 4+x^2+4x--8y-4xy+4y^2
= x^2+4y^2+4x-8y-4xy+4
this can also be solved by
(a+b+c)^2=a^2+b^2+c^2+2(ab+bc+ca) formula
I. e
(2+x+(-2y))^2
by applying the above formula you will get the answer as x^2+4y^2+4x-8y-4xy+4
= (2+x)^2+4y^2-2(2+x)(2y)
= 4+x^2+4x--8y-4xy+4y^2
= x^2+4y^2+4x-8y-4xy+4
this can also be solved by
(a+b+c)^2=a^2+b^2+c^2+2(ab+bc+ca) formula
I. e
(2+x+(-2y))^2
by applying the above formula you will get the answer as x^2+4y^2+4x-8y-4xy+4
kunal422:
sturdy in this institute for iit
which institute
akash
now I am studying in pinnaacle classes
thanks for your information
means of a pinnaacle classes
it is a name of coaching center like Akash
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