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[" (1) If "x+y+z=8" and "xy-1yz+zx=20" f...

[" (1) If "x+y+z=8" and "xy-1yz+zx=20" find the value "],[" of "x^(3)+y^(3)+z^(3)-3xyz]

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If x+y+z=8 and xy+yz+zx=20 find the value of x^(3)+y^(3)+z^(3)-3xyz

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