Factor x2 – 4x – 5 = 0. with all steps.

We must find such numbers, whose sum is equal to -4, and the product is equal to -5.

-4 = 1 + (-5)

-5 = 1 · (-5)

Therefore:

The solutions to this equation are numbers: -1 and 5.

x -

median = 1.25

range = 12-14.5

interquartile = q12-q14.5

y -

median = 1

range = 15-17

interquartile = q15-q17