document.write( "Question 1127304: Solve by completing the square: x^2+5x-50=0 \n" ); document.write( "

Algebra.Com's Answer #743684 by math_helper(2461) $\"\"$ $\"About$

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$\"+x%5E2+%2B+5x+-+50+=+0+\"$
\n" ); document.write( " $\"+x%5E2+%2B+5x+%2B+%2825%2F4%29+-+50+=+25%2F4+\"$
\n" ); document.write( " $\"+x%5E2+%2B+5x+%2B+%2825%2F4%29++=+25%2F4+%2B+50+\"$
\n" ); document.write( " $\"+%28x+%2B+5%2F2%29%5E2+=+225%2F4+\"$
\n" ); document.write( " $\"++%28x%2B5%2F2%29+=+%2B-+15%2F2+\"$ <Ч introduce +/- after sqrt of both sides
\n" ); document.write( " $\"++x+=+-5%2F2+%2B-+15%2F2++\"$ \r
\n" ); document.write( "\n" ); document.write( "ЧЧ
\n" ); document.write( "Ans: $\"+highlight%28+x+=+5+%29+\"$ and $\"+highlight%28+x+=+-10%29+\"$ are the two solutions
\n" ); document.write( "ЧЧ\r
\n" ); document.write( "\n" ); document.write( "Check:
\n" ); document.write( "x=5: 5^2 + 5(5) - 50 = 25+25-50 = 0 (ok)
\n" ); document.write( "x=-10: (-10)^2 + 5(-10) - 50 = 100 - 50 - 50 = 0 (ok)\r
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