document.write( "Question 235565: Please help me solve for x : 10x^2+70x=180 \n" ); document.write( "
Algebra.Com's Answer #173542 by ankor@dixie-net.com(22740)\"\" \"About 
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Please help me solve for x : 10x^2+70x=180
\n" ); document.write( "Standard form
\n" ); document.write( "10x^2 + 70x - 180 = 0
\n" ); document.write( "Simplify, divide by 10:
\n" ); document.write( "x^2 + 7x - 18 = 0
\n" ); document.write( "Factors to:
\n" ); document.write( "(x+9)(x-2) = 0
\n" ); document.write( "Two solutions
\n" ); document.write( "x = -9
\n" ); document.write( "x = +2
\n" ); document.write( ":
\n" ); document.write( ":
\n" ); document.write( "Check solution in original problem using x=-9
\n" ); document.write( "10x^2 + 70x = 180
\n" ); document.write( "10(-9^2) + 70(-9) = 180
\n" ); document.write( "10(81) - 630 = 180
\n" ); document.write( "810 - 630 = 180
\n" ); document.write( ":
\n" ); document.write( "You can check the x=2 solution \n" ); document.write( "
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