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 the simplest radical form.


2x2 + 3x - 4 = 0

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book Other Question

The cost of a taxi ride is calculated by adding a fixed amount to a charge for each 1/4 mile of the trip. If a one mile trip costs $4.00 and 1 and 1/2 mile trip cost $5.50 , what will be the costs of a 3 mile trip? What is the specific difference between a "term" and a "factor"?
Thank you.