Overview
I'm working on a calculus question and need an explanation and answer to help me learn.
1. Which is greater than 4?
(a) 5,
(b) -5
(c) -1/2
(d) -25.
2. Which is the smallest?
(a) -1,
(b) -1/2,
(c) 0
(d) 3.6. Multiply: (x – 4)(x + 5)
(a) x2 + 5x - 20,
(b) x2 - 4x - 20,
(c) x2 - x - 20,
(d) x2 + x - 20.