document.write( "Question 1051974: how do i do sqr rt. of (x-4) (x+20) \n" ); document.write( "

Algebra.Com's Answer #667407 by rothauserc(4718) $\"\"$ $\"About$

You can put this solution on YOUR website!
square root ( (x-4) * (x+5) ) =
\n" ); document.write( ":
\n" ); document.write( "( (x-4) * (x+5) )^(1/2) =
\n" ); document.write( ":
\n" ); document.write( "(x-4)^(1/2) * (x+5)^(1/2)
\n" ); document.write( ":
\n" ); document.write( "assuming x > 0, roots are x = 4 and x = -5
\n" ); document.write( ":
\n" ); document.write( "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
\n" ); document.write( ":
\n" ); document.write( "here is a graph of the function
\n" ); document.write( ":
\n" ); document.write( " $\"+graph%28+300%2C+200%2C+-15%2C+15%2C+-5%2C+13%2C+sqrt%28x%5E2%2Bx-20%29%29+\"$
\n" ); document.write( ":\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );