use the zero product property to find the solutions to the equation x4 + 12 = 7x.
a. x= -4 or x = 3
b. x= -4 or x = -3
c. x= -3 or x = 4
d. x = 3 or x = 4

Mr. roseanne will buy 12 1/2 pounds beef for for a cookout. the price for the first 3 pounds of beef is $4.99 per pound. after that, the price is $4.49 per pound. how much will mr.roshan pay for the beef