2. Multiply \( \begin{array}{ll}\text { a. } 2 n(-5 n+2 y-c) & \text { b. } 2 b^{2}(3 a-5 b+8 c)\end{array} \)

5.7 Determine the equation of \( h \) if \( h(x)=g(x+1)-2 \)

8. \( \frac{\sqrt{27 a^{3} b^{6}}}{\sqrt{3 a b^{6}}-5 a b^{2}}= \)

(b) \( \frac{3}{x-1}<\frac{2}{x} \)

a. \( \frac{2 x^{3}+6 x-6}{x^{3}-1} \)

In the \( x y \)-plane, a parabola has vertex \( (9,-14) \) and intersects the \( x \)-axis at two points. If the equation of the parabola is written in the form \( y=a x^{2}+b x+c \) where \( a, b \), and \( c \) are constants, which of the following could be the value of \( a+b+c \) ? (A) -23 (B) -19 (D) -12