6. If p = 4x³ + x – 2, q = x² – 1, and r = 3x – 5, then what is 2p – (q + r)?
A. 7x³ – x + 2
B. 8x³ – x² – x + 2
C. 8x³ – x² – x – 10
D. 8x³ – x² + 5x – 8
7. Which of the following are the roots of the equation 2x² + 4x – 3 = 0?
8. If g(x) = 3x – 5 and \( h(x)=\frac{7x+10}{4} \)at what point does the graph of g(x) intersect the graph of h(x)?
A. (-2, -11)
B. (2, 1)
C. (3, 4)
D. (6, 13)
9. If \( x=k^-\frac{1}{3} \) where x > 0 and k > 0, which of the following equations gives k in terms of x?
A. \( k=\frac{1}{x} \)
B. \( k=\frac{1}{-\sqrt[3]{x}} \)
C. \( -\sqrt[3]{x} \)
D. k = -x³
10. 4x – (10 – 2x) = c (3x – 5)
If the equation shown has infinitely many solutions, and c is a constant, what is the value of c?
A. -2
B. \( \frac{2}{3} \)
C. \( -\frac{2}{3} \)
D. 2
