Lok solve the flowing : cal IF 2 -2...
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Lok solve the flowing : cal IF 2 -20 a valise of y Sand 24-6. Find the

11th - 12th Class
Maths
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57
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bil triven thal, ( x-2 y=8 ) ( 8 x y=6 ) then find of ( x^{3}-8 y^{3}= ) ( sin (R)-1+2 y=8 ) Cube on both side. ( (x-2 y)^{3}=(8)^{3} ) ( 7 x^{3}-8 y^{3}-3 x y(x-2 y)=8 times 8 times 8 ) ( left.Rightarrow quad x^{3}-8 y^{3}=512-3 times 6 times 18right) ) ( Rightarrow x^{3}-8 y^{3}=512-144 ) ( Rightarrow x^{3}-8 y^{3}=368 )
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