Question

18. If x + y = 6 and xy = 10, find the value of x2 + y2
plz answer with process​

Answer 1

Answer:

16

Step-by-step explanation:

x2+y2

=(x+y)2-2xy

=(6)2-2×10

=36-20

=16

Answer 2

Answer:

(X + Y)2=X2 +Y2 + 2XY

(6)2 = X2 + Y2 + 2*10

36 = X2 + Y2 + 20

X2 + Y2 =36-20

X2 + Y2 = 16

answer 16

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