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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

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7. Which of the following are the roots of the equation 2x² + 4x – 3 = 0?

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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)

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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

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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

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