It math question

Assignment: Quadratic Expressions Name: Date: Knowledge Application Thinking Communication Total 12 12 5 33 Knowledge: 1. What is the product (x + 3)(x +9)? A. x+ 27 C. x + 9x + 27 B. x + 3x + 27 D. x + 12x + 27 2. Find the product (5x - 11)(8x + 11). A. 40x -33x - 121 C. 40x + 143x - 121 B. 40x + 33x - 121 D. 40x - 121 3. Expand and simplify (x - 15)'. A. x - 15x + 225 C. x - 225x + 225 B. x - 30x + 225 D. X - 225 4. The greatest common factor for the set of terms 12, 4x, &', and 16x is A. 4 C. 4X B. 4x D. 2 5. What is the factored form of the expression -21x + 72? A. -3(7x + 24) C. -3(7x - 24) B. 3(7x - 24) D. 3(7x + 24) 6. The expression -15x' - 40x + 25 written in factored form is A. -5(-3x- + 8x - 5) C. -5(-3x - 8x + 5) B. -5(3x3 + 8x -5) D. -5(3x - 8x + 5) 7. Which expression is an example of a difference of squares? A. 4x + 16 C. 9x - 64 B. x - 21 D. 25x- 81 8. Which expression is NOT an example of a difference of squares? A. 36x -49 C. 225 - 100x B. 64-16x D. 9x - 181 9. Factor 900 - x. A. (x+ 30)(x -30) C. (30 + x)(30 -x) B. (x -30)(x -30) D. (30-x)(30-x)