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

Question 1051974: how do i do sqr rt. of (x-4) (x+20)
Found 2 solutions by Alan3354, rothauserc:
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Define "do"
Answer by rothauserc(4718) (Show Source): You can put this solution on YOUR website!
square root ( (x-4) * (x+5) ) =
:
( (x-4) * (x+5) )^(1/2) =
:
(x-4)^(1/2) * (x+5)^(1/2)
:
assuming x > 0, roots are x = 4 and x = -5
:
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
:
here is a graph of the function
:

:

RELATED QUESTIONS
Find all the solutions to the equation sqr rt 2sinx = 1. I tried moving the sqr rt to... (answered by stanbon)
Hi. How do I simplify this Radical function: 4 sqr(36)/3 sqr(45)? Thank... (answered by ReadingBoosters,stanbon,MathTherapy)
How do you add a whole number to a simplified square root? Example: 6+3sqr3 I can't... (answered by Theo)
x^2 + x sqr rt of 2 - 2 =... (answered by Fombitz)
Solve: X= sqr rt x-1 +... (answered by Earlsdon)
How do you solve for p? P=I-rt. P=rt/I. P=i/rt. P=I x... (answered by ReadingBoosters)
how do I multiply and simplify? sq rt 7 times ((sq rt x) -7 sq rt... (answered by jim_thompson5910)
How do you find the inverse of the one to one function f(x)= 3 sqr... (answered by josgarithmetic)
Here are 3 equations that I need you to check my answers on: #1) Solve this equation... (answered by Fombitz)