Answer:
A + B = 21
(c) A = −10, B = 31
(d) 24x
2 − 34x + 31
2. (a) -
(b) (x + 3)(2x + 1)(7 − 3x)
(c) y = 1.22
3. (a) 5
(b) f(−2) = 0
(c) (x + 2)(3x + 2)(2x − 1)
4. (a) -
(b) A = −96, B = −48
(c) 3(2x + 1)(x + 4)(x − 4)
5. (a) f(2) = 0
(b) (x − 2)2
(2x + 1)
6. (a) -
(b) (x − 3)(2x − 3)(x