Final Exam

• (4 - 3x)

• (3 - 4x)(9 + 12x + 16x²)

• (4 -3x)(16 + 12x + 9x²)

• (16 + 12x +9x²)

3n² - 22n +24 = _____

• (n + 6)(3n +4)

• (4n + 6)(n - 4)

• (3n - 4)(n - 6)

• (n + 3)(6n + 10)

5x² + 33x - 56

• (2x - 5)(2x + 8)

• ( 5x - 8)(x +7)

• (5x - 7)(x +8)

• (7x - 5)(x + 8)

r² - 5r -14

• (r - 2)(r + 7)

• (r - 7)(r + 2)

• (r - 2)(r + 10)

• (r - 7)(r + 5)

b² - 16

• (b + 4)(b - 4)

• (b - 4)(b - 4)

• (b - 4)²

• (b +4)

24m³ - 4m² + 42m - 7

• (4n² + 7)(6n - 1)

• (4n² + 7)(6n +1)

• (n² +7)(n - 1)

• (8n² + 7)(n - 1)

(k⁴ + 8k² - 6k) + (5k - 6k⁴ + 6k²)= -5k⁴ - 14k² + k

• True
• False

(2p² -p³ +7p⁴) - (7p³ - 2p⁴ - 7p²) =________

• 9p⁴ - 8p³ + 9p²

• 9p⁴ - 4p^{3 +} p²

• 10p⁹

• 9p⁴ + 8p³ - 9p³

If a bar of metal alloy consists of 100 grams of tin and 150 grams of lead, what percentage of the entire bar (by weight) is tin?

• 10%

• 15%

• 33 1/3%

• 40%

8x = -3(12 - 2x), then x =

• 2

• -6

• -12

• -18