Simplify.
Remove all perfect squares from inside the square root.

Step-by-step explanation:

1) Rewrite 63 as its prime factors.

2) Group the same prime factors into pairs.

3) Rewrite each pair in exponent form.

3) Use this rule

f(x) is going down by 4

step-by-step explanation:

(its either that or its going left by 4)

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3