Question 542571: Solve the equation by making an appropriate substitution.
here is what I have tried:
subsitute x for u
factor (I cannot find a factor for this problem so I divide everything by 2)
using the formula
8 +-sqrrt1088 / 2
my answer choices are
You can put this solution on YOUR website! You're ok up the point of substituting or
This wil factor:
Apply the zero product rule.
or Square both sides in each case.
You should check these solutions because, in squaring, you may have inadvertently introduced invalid solutions.