Question

if x=7,y=3 find x+y, xy and x square + y square +2xy​

Answer 1

Step-by-step explanation:

a...x + y

    7 + 3 = 10.

b...xy

    7 X 3 = 21.

c...x² + y² + 2xy

    7²+ 3² + 2 X 7+3

    49 + 9 + 2 X 10

    58 + 20

    78.

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