SOLUTION: write the expression as a single logrithm log5 (x(squared - 36) - 8log5 (x+6) = log5 _____ . fill in the space at the end

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: write the expression as a single logrithm log5 (x(squared - 36) - 8log5 (x+6) = log5 _____ . fill in the space at the end      Log On


   

Question 3957: write the expression as a single logrithm
log5 (x(squared - 36) - 8log5 (x+6) = log5 _____ . fill in the space at the end
Answer by longjonsilver(2297) About Me  (Show Source):
You can put this solution on YOUR website!
not sure what you are doing here, but it is way off. Too much. Too much :-)

Your H, L and W definitions are spot on, but it says the base area = 84. The base area = LW, so (x-3)(x+5)=84. Multiplying this out gives

x%5E2+%2B+2x+-+15+=+84
x%5E2+%2B+2x+-+99+=+0
(x+11)(x-9) = 0

so x+11 = 0 OR x-9=0

so x=-11 or x=9

So, out solution is the x=9, since we are after a height.

jon.