How Do You Calculate f(x+Δx) for the Function x²+3x+2?

[stonecoldgen]

it's just something thechnical



let's say i have the function x²+3x+2

when they say f(x+$\Delta$x)



is it (x+$\Delta$x)²+2(x+$\Delta$x)+2

or

another way?

 

[Dick]

it's just something thechnical



let's say i have the function x²+3x+2

when they say f(x+$\Delta$x)



is it (x+$\Delta$x)²+2(x+$\Delta$x)+2

or

another way?

It's that. Except you have 3 in the first expression and a 2 in the second in the linear term. Typo, I guess?

 

[stonecoldgen]

It's that. Except you have 3 in the first expression and a 2 in the second in the linear term. Typo, I guess?

thanks lot and yeah, typo