Question

1. What is the factored form of 4x2 + 12x + 5? (1 point) (2x + 4)(2x + 3) (4x + 5)(x + 1) (2x + 1)(2x + 5) (4x + 1)(x + 5) 2. What is the factored form of 2x2 + x – 3? (1 point) (2x + 3)(x – 1) (2x + 1)(x – 3) (2x – 3)(x + 1) (2x – 1)(x + 3) 3. The area of a rectangular swimming pool is 10x2 – 19x – 15. The length of the pool is 5x + 3. What is the width of the pool? (1 point) 2x – 18 2x – 5 5x – 5 5x – 22 4. What is the factored form of 16x2 – 16x – 12? (1 point) 4(2x – 2)(2x + 2) 4(4x – 6)(x + 2) 4(2x – 2)(2x + 3) 4(2x – 3)(2x + 1) 5. What is the factored form of 3x2 + 21x – 24? (1 point) 3(x + 8)(x – 1) 3(x + 6)(x – 3) 3(x + 5)(x – 3) 3(x + 7)(x – 3) FinishCancel

Answer 1

(2x + 4) ( 2x + 3) = 4x² + 6x + 8x + 12 = 4x² +14x + 12
(4x + 5) (x + 1) = 4x² + 4x + 5x + 5 = 4x² + 9x + 5
(2x + 1) (2x + 5) = 4x² + 10x + 2x + 5 = 4x² + 12x + 5
Question one is (2x + 1) (2x + 5)

Answer 2

Lesson 7: Factoring ax^2 + bx + c Unit 4: Polynomials and Factoring

1. C - (2x + 1)(2x + 5)

2. A - (2x + 3)(x - 1)

3. B - 2x - 5

4. D - (2x - 3)(2x + 1)

5. A - 3(x +8)(x - 1)