The function given is
[tex]f(x)=x^4-6x-8[/tex]
The value of the function when x equals to -5.
[tex]f(-5)=(-5)^4-6(-5)-8[/tex][tex]f(-5)=625+30-8[/tex][tex]f(-5)=647.[/tex]
Thus the value of the function at x =-5 is 647.
Similarly the value of the function when x=2.
[tex]f(2)=(2)^4-6(2)-8[/tex][tex]f(2)=16-12-8[/tex][tex]f(2)=4-8[/tex][tex]f(2)=-4[/tex]
Thus the value of the function when x=2 is -4.
