Solnve
the inequality 2x2+ 5x-3>=0

x ≥ 1/2

x ≤ -3

Step-by-step explanation:

2x² + 5x - 3 ≥ 0

Factor left side.

(2x - 1)(x + 3) ≥ 0

Set factors in an inequality to 0.

2x - 1 ≥ 0

2x ≥ 1

x ≥ 1/2

You multiply both sides by 2x - 1, so the sign switches.

x + 3 ≤ 0

x ≤ -3

b) 1/3 * 1/5

step-by-step explanation:

each smallest part is 1/15 since the written one is 1/5 and it's divided by 3 equal parts. (1/5 )/3 = 1/15 = 1/3 * 1/5