document.write( "Question 747262: 4xsquared + 9x + 7 = 0 \n" ); document.write( "

Algebra.Com's Answer #454833 by jim_thompson5910(35256) $\"\"$ $\"About$

You can put this solution on YOUR website!
Use the quadratic formula to solve for x\r
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\n" ); document.write( "\n" ); document.write( " $\"x+=+%28-b%2B-sqrt%28b%5E2-4ac%29%29%2F%282a%29\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"x+=+%28-%289%29%2B-sqrt%28%289%29%5E2-4%284%29%287%29%29%29%2F%282%284%29%29\"$ Plug in $\"a+=+4\"$ , $\"b+=+9\"$ , $\"c+=+7\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"x+=+%28-9%2B-sqrt%2881-%28112%29%29%29%2F%288%29\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"x+=+%28-9%2B-sqrt%28-31%29%29%2F8\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"x+=+%28-9%2Bsqrt%28-31%29%29%2F8\"$ or $\"x+=+%28-9-sqrt%28-31%29%29%2F8\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"x+=+%28-9%2Bi%2Asqrt%2831%29%29%2F8\"$ or $\"x+=+%28-9-i%2Asqrt%2831%29%29%2F8\"$ \r
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\n" ); document.write( "\n" ); document.write( "So the two solutions are $\"x+=+%28-9%2Bi%2Asqrt%2831%29%29%2F8\"$ or $\"x+=+%28-9-i%2Asqrt%2831%29%29%2F8\"$ \n" ); document.write( "

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