Question 1191744


if {{{f(x) =x^2+ 2x-1}}}

then

{{{f(x+h) =(x+h)^2+ 2(x+h)-1}}}

{{{f(x+h) =h^2 + 2 h x + x^2+ 2x+2h-1}}}

{{{f(x+h) =x^2+ h^2 +2x+ 2hx +2h-1}}}