If x = 3 and y = -1, find the values of each of the following using in identity: -Maths 9th

If x = 3 and y = -1, find the values of each of the following using in identity: -Maths 9th
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 Formula, (a+b+c)2=a2+b2+c2+2ab+2bc+2ca Given, (2+x−2y)2=22+(x)2+(−2y)2+2(2)(x)+2(x)(−2y)+2(2)(−2y) =4+x2+4y2+4x−4xy−8y
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