CAT Exam Logical Reasoning

if f(x,y)=x^2+y^2+2xy+1 if f(0)=1 calculate f(5)+f(2).??
Dec 2nd morning exam question TCS

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x^2+y^2+2xy=(x+y)^2
x=5,y=2,
x+y=7 and its square=49
x^2+y^2+2xy+1=(x+y)^2 +1=49+1=50
Result=50
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A is greater than B and B is greater than C
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