U^2(2u+3)+7(2u+3)
(u^2+7)(2u+3)
The total amount of money he had to pay for the bike is $3,954.02 because 6 percent of 7 is 4.2
√8 = √(4x2) = 2√2
4√2 =4√2
2√2-4√2 = -2√2
The correct answer is #2: 6,2 9,3 12,4 because all of these answers equal 1/3
X = (12 +- sqrt (144 -4(7)(3))/14
x = (12 + - sqrt (144 - 84))/14
x = (12 + - sqrt(60))/14
x = (12 + - 2sqrt 15))/14
x = (6 + - sqrt 15) / 7