SOLUTION: how do i do sqr rt. of (x-4) (x+20)

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Question 1051974: how do i do sqr rt. of (x-4) (x+20)
Found 2 solutions by Alan3354, rothauserc:
Answer by Alan3354(69443) About Me  (Show Source):
Answer by rothauserc(4718) About Me  (Show Source):
You can put this solution on YOUR website!
square root ( (x-4) * (x+5) ) =
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( (x-4) * (x+5) )^(1/2) =
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(x-4)^(1/2) * (x+5)^(1/2)
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assuming x > 0, roots are x = 4 and x = -5
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note that for -5 < x < 5 the function values are imaginary and the domain is x < or = -5 and x > or = 4, range is all real numbers > or = 0
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here is a graph of the function
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+graph%28+300%2C+200%2C+-15%2C+15%2C+-5%2C+13%2C+sqrt%28x%5E2%2Bx-20%29%29+
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