Question

If x= 1 and y= -2, find the value of the following expressions. a. x2 +y2
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Answer 1

Answer:

-4

Step-by-step explanation:

If x= 1 and y= -2

x2 +y2

1*2=2+-2*2=-4

Answer 2

Answer:

answer is 5,

Step-by-step explanation:

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

Hope it will help