SOLUTION: Simplify using only positive exponents. -5(3/2)(4-9x)^-.5(-9) I multiplied -5 times 3/2 and got -15/2, then multiplied this by -9 and got 135/2. So now I have 135/2 times

Algebra ->  Exponents-negative-and-fractional -> SOLUTION: Simplify using only positive exponents. -5(3/2)(4-9x)^-.5(-9) I multiplied -5 times 3/2 and got -15/2, then multiplied this by -9 and got 135/2. So now I have 135/2 times       Log On


   



Question 92608: Simplify using only positive exponents.
-5(3/2)(4-9x)^-.5(-9)

I multiplied -5 times 3/2 and got -15/2, then multiplied this by -9 and got 135/2. So now I have 135/2 times the square root of (4-9x)^-1. Would this simplify to the square root of 1/(4-9x)? If I did this, what would that square root simplify to? I'm not sure if I've done this right so far, and don't know where to go from here.

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
I think you have done very well.
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-5(3/2)(4-9x)^-.5(-9)
= (135/[2sqrt(4-9x)]
Cheers,
Stan H.