If x=1 any y=2 , then find the value of x²y-xy²
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x=3 y=4
x²y + xy² : x³ + y³
9×4 + 3×16 : 27 + 64
36 + 48 : 91
84 : 91
84/91 = 12/13 = 12 : 13
hint 12 × 7 = 84
13 × 7 = 91
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