8. Solve the equation below. (2x – 5)2 = 25

x = 8 and x = -4
x = 5 and x = 0
x = 4 and x = 2
x = 5 and x = 3

Two cyclists 84 miles apart start riding toward each other at the samen time. one cycles 2 times as fast as the other. if they meet 4 hours later what is the speed (in miles) of the faster cyclists