Question

1. Find the value of x2 + y2, if x = -1, y = 2 ______​

Answer 1

Answer: (-1)^2 + (2)^2 = 1 + 4 = 5

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Answer 2

Here we have to find the value of $x^{2} +y^{2}$

The values of x and y are given

x = -1

y = 2

Now we will put the value in the expression

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

Note: square of negative numbers is always positive

So, the value of $x^{2} +y^{2}$ will be 5