document.write( "Question 987275: Find AB if B is the midpoint of AC and AB = 2x^2+1 and BC = 9x+6 \n" ); document.write( "

Algebra.Com's Answer #608180 by josgarithmetic(39618) $\"\"$ $\"About$

You can put this solution on YOUR website!
B the midpoint means AB=BC.\r
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\n" ); document.write( "\n" ); document.write( " $\"2x%5E2%2B1=9x%2B6\"$
\n" ); document.write( " $\"2x%5E2-9x-5=0\"$
\n" ); document.write( " $\"%282x%2B1%29%28x-5%29=0\"$ \r
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\n" ); document.write( "\n" ); document.write( "You do the rest.\r
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\n" ); document.write( "\n" ); document.write( "Final result should be AB is either 1.5 OR 51.
\n" ); document.write( "Either is acceptable since neither length is negative.
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