Which of the following is the correct simplification of $\frac{z+10}{10}$z+1010?
$\frac{z}{10}+1$z10+1
$z+1$z+1
$z$z
Simplify the following expression, for $x\ne0$x≠0:
$\frac{9x^3+5x^5}{x}$9x3+5x5x
Simplify $\frac{18x^3-12x^2+24}{3}$18x3−12x2+243.
Simplify the following expression, for $x\ne0$x≠0:
$\frac{48x^4+12x^3-30x^2-42x}{6x}$48x4+12x3−30x2−42x6x
Rewrite simple rational expressions in different forms; write a(x)/b(x) in the form q(x) r(x)/b(x), where a(x), b(x), q(x), and r(x) are polynomials with the degree of r(x) less than the degree of b(x), using inspection, long division, or, for the more complicated examples, a computer algebra system.