document.write( "Question 1120356: Solve the following quadratic equations:
\n" ); document.write( "1. (2x + 3)(5x – 15) = 0
\n" ); document.write( "2. x2 – 8 =0
\n" ); document.write( "3. x2 + 5x – 36 = 0
\n" ); document.write( "4. x2 = -8x + 15
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Algebra.Com's Answer #736047 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
Only doing #4:\r
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\n" ); document.write( "\n" ); document.write( "\"x%5E2%2B8x-15=0\"
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\n" ); document.write( "discriminant \"8%5E2-4%2A1%2A%28-15%29=64%2B60=124=31%2A2%5E2\"\r
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\n" ); document.write( "\n" ); document.write( "\"x=%28-8%2B-+2%2Asqrt%2831%29%29%2F2\"\r
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\n" ); document.write( "\n" ); document.write( "\"highlight%28x=-4%2B-+sqrt%2831%29%29\"
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