document.write( "Question 355131: 20x2-13x-15 = 0 \n" ); document.write( "
Algebra.Com's Answer #253662 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
Hi,
\n" ); document.write( "20x2-13x-15 = 0\r
\n" ); document.write( "\n" ); document.write( "*Note: Using quadratic formula to solve for a equation in the form ax^2 + bx + c = 0
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\n" ); document.write( " \"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"
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\n" ); document.write( " \"x+=+%2813+%2B-+sqrt%28+1369+%29%29%2F%2840%29+\"
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\n" ); document.write( " \"x+=+%2813+%2B-+37%29%2F%2840%29+\"
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\n" ); document.write( "\"x+=+-24%2F%2840%29=%28-6%2F10%29+=+-.6+\"
\n" ); document.write( "x = -.6
\n" ); document.write( ".\r
\n" ); document.write( "\n" ); document.write( "\"x+=+50%2F%2840%29=%285%2F4%29+\"
\n" ); document.write( "x = 1.25
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