Reference no: EM13529899
1. Remove the parentheses. –(3x + 5y)
A) 3x – 5y B) –3x + y C) –3x – 5y D) –3x + 5y
2. Find the value of the polynomial –x2 + 3x – 1 when x = 4.
A) –29 B) 27 C) –5 D) –3
3. Multiply. 10x(–4x – 7)
A) –110x2 B) –40x2 – 70x C) 40x2 – 70x D) –40x2 – 7x
4. Which of the following is not a polynomial?
A) 24 B) 4x3 + 5x – 1 C) 2x – D) 3xy2 + xy
6. Add 5y – 4 and 2y2 – 8y.
A) 2y2 + 13y – 4 B) 2y2 – 3y – 4 C) 2y2 + 3y – 4 D) 7y2 – 12y – 4
7. Classify the following, if possible. 7x2 + 10xy + y2
A) Not classified B) Trinomial C) Monomial D) Binomial
8. Multiply. Write the answer in scientific notation.
(2.4 * 10–5)(4 * 10–4)
A) 9.6 * 10–9 B) 9.6 * 1020 C) 9.6 * 10–10 D) 4.4 * 10–11
11. Subtract 5m2 + 2m + 9 from 7m2 – 5m – 8.
A) 2m2 – 3m – 17 B) 2m2 – 7m – 17 C) 2m2 – 7m + 1 D) 2m2 – 3m + 1
12. Multiply. (3x – 1)(2x + 5)
A) 6x2 + 17x – 5 B) 6x2 – 13x – 5 C) 6x2 – 17x – 5 D) 6x2 + 13x – 5
15. Multiply. (2x – 4)2
A) 4x2 + 16 B) 2x2 – 8x + 16 C) 4x2 – 16x + 16 D) 4x2 – 8x + 16
16. Simplify. (4x)2
17. Multiply. (x + 2)(x – 2)
18. Write in descending-exponent form, and give the degree.
4x5 + x8 – 7
19. Multiply. 3xy2(5xy – 4x + 6y)
20. Simplify. (m5)8
21. Write 9.03* 10–2 in standard notation.
22. List the terms and coefficients. 8x3 – 4x2 + 3
23. Write using positive exponents only. b–2
24. Find the value of the polynomial 8x – 6 when x = 1 and when x = –1.
25. Multiply. (x – 8)2