Question

急 求函数值,已知f(x)=2x³-x+3,求f(0),f(2),f(-m)

Answer 1

求f(0)=3,

f(2)=2*2³-2+3=17

f(-m)=2*(-m)³+m+3

=-2m³+m+3

=-2m(m-1)(m+1)+3