What I Know (Pre-Test) Directions: Read the questions carefully and write only the letter of your answer on a separate sheet. 1. The process of finding the factors of the expression is called A. Factoring C. Prime Number B. Multiplying D. Common Monomial Factor 2. The expression (r + 2y)3 is an example of A. Sum of two terms C. Square of a trinomial B. Cube of a binomial D. Square of a binomial 3. Which of the following is a trinomial? A. X + 2 C. x² + 3x + 1 B. 2(x + 3) D. x2 + 3x - x + 1 4. Which of the following is the positive square root of 256? A. 14 B. 15 C. 16 D. 17 5. Which of the following is the prime factorization of 4116? A. 23.3.72 C. 23.3.73 B. 22.3.73 D. 2.32.73 6. Find the missing terms: (x + _)(3x + 2) = 3x2 + 27x + 24. A. 6,4 B. 4,6 C. 8,3 D. 12,2 7. What is the GCF of 9xy - 27x3y2 ? A. 3x B. 9x С. 3xy D. 9xy 8. A common factor of x2 + 7x + 10 and x2 - 25 is A. x² B. x + 2 C. x +5 D. X-5 9. Which mathematical statement is NOT correct? A. (2x + 5)2 = 4x2 + 20x + 25 C. (2x - y)(3x - y) = 6x2 - 5xy + y2 B. (3x - 4)(2x + 7) = 6x2 - 13x - 28 D. (4x - 5)(4x - 5) = 16x2 -- 40x + 25 10. Which of the following gives a product of 3x2 +27x + 24? A. (x + 6)(3x + 4) C. (x + 12)(3x + 2) B. (x +8)(3x + 3) D. (x + 4)(3x + 6) 11. The area of a square is x2 + 6x + 9 square units. Which expression represents the length of the side? A. (x + 2) units C. (x + 9) units B. (x + 3) units D. (x - 3) units 12. Which of the following values of k will make x2 - kx + 12 factorable? A. -14 B. - 10 C. 7 D. 12 13. Your classmate was asked to square (2x - 3), he answered 4x2 - 9. Is his answer correct? A. Yes, because squaring a binomial always produces a binomial product. B. Yes, because the product rule is correctly applied. C. No, because squaring a binomial always produces a trinomial product. D. No, because the answer must be 4x2 + 9. of a mare garden is (25x2 - 20x + 4) square units, is it possible
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Answer:
2×3)-9
74
12-34=12
64-6=~2/2
20×+4)=`23
Step by Step Explanation
Step-by-step explanation:
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