Let \(f(x)=2x^2-3x+4\) and \(g(x)=x+1\). Find the correct expression for evaluating \(g(f(5))\).
a) \((2(5+1)^2-3(5+1) +4) +1\)
b) \((2(5)^2-3(5)+4)+1\)
c) \((2(5+1)^2-3(5+1)+4)\)
d) \((2(5-1)^2-3(5-1)+4)+1\)
just replace the x in the g function with 2x^2-3x+4
and then sub 5 for x.
You tell us what you get.
That gave me the same answer I already came up with.
\(g(f(5))=2(5)^2-3(5)+4+1\)
I was shown how to get here but I don't know how to write the expression the way they want it.
Is the answer b) ? What I got looks similar to it.
what you have written is exactly the same as B. No need to rearrange anything.
B just has one added set of brackets but they do not change the value at all.
Thank you! I'll definitely check the link out. I could use some extra practice in this area.