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" 6.Find the value of "4x^(2)+y^(2)+25z^...

" 6.Find the value of "4x^(2)+y^(2)+25z^(2)+4xy-10yz-20zx" when "x=4,y=3" and "z=2" ."

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Find the value of 4x^2+y^2+25 z^2+4x y-10 y z-20 z x when x=4,y=3 and z=2.

Find the value of 4x^2+y^2+25 z^2+4x y-10 y z-20 z x when x=4,\ y=3 and z=2

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