Question

If x=1,y=2 than the value of x2 + y2

Answer 1

Answer:

$x {}^{2} + y {}^{2} \\ (1) {}^{2} + (2) {}^{2} = 1 + 4 = 5$

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Answer 2

Answer:

x=1

y=2

therefore,

$x^{2} = x*x = 1*1 = 1$

$y^{2} =y*y=2*2=4$

therefore,

$x^{2} +y^{2} = 1+4 = 5$

Hope this helps you

Step-by-step explanation: