Describe four different partitions of the set of all students enrolled at auniversity.

L1 - 7 Now You Try It (NYTI): 1. Solve each equation for x: √ (a) x +2 x − 3=0 ▯ ▯ ▯1 − 2x ▯ (b) ▯ x ▯=3 x 1 2 1 (c) = − , where a is a constant. x + a x − 1 x − a 2 1/2 2 −1/2 2 (d) (x − 1) − (x − 1) (2 − x ) =0 x − 1 2. Solve each inequality for x: 3 2 (a) x − 5x ≥ 4x (b) |1 − 4x|− 7 ≤− 2 (c) −|2x +3 | < −4 2 (d) x ≥ 3 x 2 (e) ≥ 3 x +6 ▯ 3▯ (f) ▯ − ▯ < 4 x