document.write( "Question 80807: hello can some one check this for me please?
\n" ); document.write( "i have to find the x intercepts
\n" ); document.write( "y=x^2+2x-3
\n" ); document.write( "y=0
\n" ); document.write( "o=(x+4)(x-2)
\n" ); document.write( "x=-4
\n" ); document.write( "or
\n" ); document.write( "x=2
\n" ); document.write( "

Algebra.Com's Answer #57968 by Earlsdon(6294)\"\" \"About 
You can put this solution on YOUR website!
Hmmm...I get something different:
\n" ); document.write( "Solve for x:
\n" ); document.write( "\"y+=+x%5E2%2B2x-3\" Set y = 0 and solve for the x's.
\n" ); document.write( "\"x%5E2%2B2x-3+=+0\" Factor the trinomial.
\n" ); document.write( "\"%28x%2B3%29%28x-1%29+=+0\" Apply the zero products principle.
\n" ); document.write( "\"x%2B3+=+0\" and/or \"x-1+=+0\"
\n" ); document.write( "So...
\n" ); document.write( "\"x+=+-3\" and \"x+=+1\"\r
\n" ); document.write( "\n" ); document.write( "A good way to verify this is to look at the graph of the original equation:
\n" ); document.write( "\"graph%28300%2C200%2C-5%2C5%2C-5%2C5%2Cx%5E2%2B2x-3%29\"
\n" ); document.write( "As you can see from the graph, the x-intercepts are:
\n" ); document.write( "x = -3 and x = 1
\n" ); document.write( "
\n" );