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(8*x-(5*x^8)-25)'The calculation above is a derivative of the function f (x)
(8*x-(5*x^8))'+(-25)'
(-(5*x^8))'+(8*x)'+(-25)'
5*(x^8)'+(8*x)'+(5)'*x^8+(-25)'
5*(x^8)'+(8*x)'+0*x^8+(-25)'
(8*x)'+5*8*x^(8-1)+0*x^8+(-25)'
(8*x)'+5*8*x^7+0*x^8+(-25)'
8*(x)'-40*x^7+(8)'*x+(-25)'
8*(x)'-40*x^7+0*x+(-25)'
0*x-40*x^7+8*1+(-25)'
0-40*x^7+8
8-(40*x^7)
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