Question

If f(x) = x4 +x2 -2 ,find f(x-1)

Answer 1

x-1=0
x=1

f(1)=(1)^4+(1)^2-2
1+1-2
2-2
=0

Answer 2

Hey mate ,



x-1=0
x=1
4*1+2*1-2
4+2-2
4+0=4

thanks