document.write( "Question 1053719: Find all real solutions:\r
\n" ); document.write( "\n" ); document.write( "sqrt(x-3)+sqrt(x+5)=4 \n" ); document.write( "
Algebra.Com's Answer #668931 by Boreal(15235)\"\" \"About 
You can put this solution on YOUR website!
sqrt(x-3)+sqrt(x+5)=4
\n" ); document.write( "square both sides
\n" ); document.write( "x-3+sqrt(x^2+2x-15)+x+5=16
\n" ); document.write( "2x+2(sqrt(x^2+2x-15)=16
\n" ); document.write( "2sqrt(x^2+2x-15)=-2x+14
\n" ); document.write( "divide by 2
\n" ); document.write( "x^2+2x-15=-x+7
\n" ); document.write( "square both sides
\n" ); document.write( "x^2+2x-15=x^2-14x+49
\n" ); document.write( "2x-15=-14x+49
\n" ); document.write( "-64=-16x
\n" ); document.write( "x=4
\n" ); document.write( "check
\n" ); document.write( "sqrt(1)+sqrt(9)=4, works\r
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