book Maths Puzzle Numerical Ability

Find the roots of the quadratic equations using the quadratic formula. Express the roots, if they are not rational, in simplest radicl form.

4x^2 - 12x - 7 = 0

Read Solution (Total 0)

book Other Question

In North Dakota, most license plates consist of five lettes. How many different license plates are there if the letters can be repeated? A car starts at 7 AM and travels at 80 kph. Another car starts at 10 AM from the same place and goes in the same direction. How fast will it have to go to catch up with the first one by 4 PM of the same day?