Question

If X+Y=3,XY=2, find the value of X3-Y3

A) 7 B) 3 C) 5 D) 9

Answer 1

Step-by-step explanation:

x+y = 3

xy = 2

x = 3-y

y = 3-x

x = 2/y

y = 2/x

THESE ARE THE VALUES FOR X and Y.

so, 3x-3y = 9.

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