test Welcome to your test 1. Difficulty : Level 3 Factorize x2 – 16. 2. Difficulty : Level 5* 3. Difficulty : Level 3 Simplify (8 – 3x)(5x + 7) + (3x + 1)(2x + 3) and express the answer in descending powers of x. (8 – 3x)(5x + 7)= –9x2 + 30x + 59 (8 – 3x)(5x + 7) + (3x + 1)(2x + 3) = –9x2 + 30x + 59 (8 – 3x)(5x + 7) + (3x + 1)(2x + 3) = 59 4. Difficulty : Level 3 Simplify (7 – 6x)( –5x + 2) – (4x – 1)(2x – 3) and express the answer in descending powers of x. (7 – 6x)( –5x + 2) – (4x – 1)(2x – 3) = 22x2 – 33x + 11 (7 – 6x)( –5x + 2) – (4x – 1)(2x – 3) = 22x2 (4x – 1)(2x – 3) = 22x2 – 33x + 11 1 out of 1 Please fill in the comment box below. Your Name Email Phone