document.write( "Question 170708: what is the x- intercept of this parabola y=-x^2+2x+3 \n" ); document.write( "
Algebra.Com's Answer #126013 by Mathtut(3670)\"\" \"About 
You can put this solution on YOUR website!
\"y=-%28x%5E2-2x-3%29\"
\n" ); document.write( ":
\n" ); document.write( "\"y=-%28x-3%29%28x%2B1%29\"
\n" ); document.write( ":
\n" ); document.write( "\"y=%283-x%29%28x%2B1%29\" x intercepts when they exist are found when y=0\r
\n" ); document.write( "\n" ); document.write( "set 3-x=0 and x+1=0.....x intercepts\"system%28x=3%2Cx=-1%29\"
\n" ); document.write( "
\n" );