Use the substitution y equals x Superscript r to find a general solution to the given equation for x greater than 0. x cubed y triple prime (x )plus 3 x squared y double prime (x )minus 9 xy prime (x )minus 24 y (x )equals0

The problem solution  is given in the attachments.

If you need an equation, it would be y=2x+8, y would be how long it grew, x being weeks.if you need how long he was asleep, it would be 4 weeks if he started with no beard, the equation would be x=8÷2if he did have a beard before hand, the equation would be 2w+x=8

Answer: the correct answer is 10step-by-step explanation: let the number be n, then the expression becomes,then“twelve more than the quotient of a number and two, decreased by four” iswhen n=4,we substitute 4 whetever we see n to get,we simplify to obtain,we further simplify to get,therefore the correct answer is c.