Which of the following is the simplified form of 18x2−12x+63x ?(1 point)

To simplify the expression \( 18x^2 - 12x + 63x \), you first combine like terms. The terms \( -12x \) and \( +63x \) are like terms.

So, we combine them:

\[ -12x + 63x = 51x \]

Now, substitute back into the expression:

\[ 18x^2 + 51x \]

Thus, the simplified form of the expression \( 18x^2 - 12x + 63x \) is:

\[ \boxed{18x^2 + 51x} \]