Question 1

Combine all like terms to simplify the expression.

Question 2

Answer:

$\large\boxed{\tt C. \ 3x^(3) +15x -9}$

Explanation:

$\textsf{We are asked to simplify the expression by cobining like terms.}$

$\large\underline{\textsf{What is Combining Like Terms?}}$

$\textsf{Combining Like Terms is simplifying an expression to where all the constants can't}$

$\textsf{be simplified further. Note that constants are numbers that are alike, where there}$

$\textsf{isn't any different variables and exponents.}$

$\large\underline{\textsf{Solving;}}$

$\tt 14x+3x^(3) -9+x$

$\textsf{The like terms (constants) are only 14x and x, which means this is the only thing}$

$\textsf{that we'll combine.}$

$\tt \boxed{\tt14x}+3x^(3) -9+\boxed{\tt x}$

$\textsf{Per a Polynomial, the term with the highest exponent goes first, then variables, then}$

$\textsf{whole numbers.}$

$\large\underline{\textsf{Hence;}}$

$\large\boxed{\tt C. \ 3x^(3) +15x -9}$

Your comment on this question:

Your answer