document.write( "Question 44416This question is from textbook College Algebra
\n" ); document.write( ": Please help with this.\r
\n" ); document.write( "\n" ); document.write( "Find all solutions of the equation. check your solutions in the original equation.\r
\n" ); document.write( "\n" ); document.write( "x + the square root of 31-9x = 5\r
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\n" ); document.write( "\n" ); document.write( "31-9x is under the square root symbol\r
\n" ); document.write( "\n" ); document.write( "thank you
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Algebra.Com's Answer #29328 by adamchapman(301)\"\" \"About 
You can put this solution on YOUR website!
\"x+%2B+sqrt%2831-9x%29+=+5\"
\n" ); document.write( "Rearrang so the square root is the only term on the right hand side:
\n" ); document.write( "\"5-xsqrt%2831-9x%29\"
\n" ); document.write( "Now square both sides:
\n" ); document.write( "\"%285-x%29%5E2=31-9x\"
\n" ); document.write( "Use FOIL to expand the left hand side:
\n" ); document.write( "\"25-10x%2Bx%5E2=31-9x\"
\n" ); document.write( "Rearrange to give a quadratic expression with zero on the right hand side:
\n" ); document.write( "\"x%5E2-10x%2B9x%2B25-31=0\"
\n" ); document.write( "\"x%5E2-x-6=0\"
\n" ); document.write( "Factorise:
\n" ); document.write( "\"%28x%2B2%29%28x-3%29=0\"
\n" ); document.write( "So the solutions are x=-2 or x=3.
\n" ); document.write( "I have plotted the curve \"y=x+%2B+sqrt%2831-9x%29\" and the line \"y=5\" Below. Note thet the solutions occur when the red line intersects the green line, when x=-2 and when x=3. This proves The solutions are accurate.\r
\n" ); document.write( "\n" ); document.write( "\"+graph%28+300%2C+200%2C+-3%2C+3.4%2C+-1%2C+6%2C+x+%2B+sqrt%2831-9x%29%2C+5%29+\" \r
\n" ); document.write( "\n" ); document.write( "I hope this helps.
\n" ); document.write( "I am currently constructing my own homework help website, and would greatly appreciate any feedback on the help you recieved to my email address: adam.chapman@student.manchester.ac.uk\r
\n" ); document.write( "\n" ); document.write( "Adam \r
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