document.write( "Question 1180546: Use the quadratic formula to determine, accurate to one decimal place, the roots, if they exist, for each quadratic relation. \r
\n" ); document.write( "\n" ); document.write( "a) y = 2x2 + 3x + 1 \r
\n" ); document.write( "\n" ); document.write( "b) y = x2 - 3x + 5 \r
\n" ); document.write( "\n" ); document.write( "c) y = x2 + x - 5 \r
\n" ); document.write( "\n" ); document.write( "d) y = - 9x2 - 6x + 1
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Algebra.Com's Answer #810255 by mananth(16946)\"\" \"About 
You can put this solution on YOUR website!
2x2 + 3x + 1=0\r
\n" ); document.write( "\n" ); document.write( "comparing with ax^2 +bx +c =0\r
\n" ); document.write( "\n" ); document.write( "using the Quadratic Formula where
\n" ); document.write( "a = 2, b = 3, and c = 1\r
\n" ); document.write( "\n" ); document.write( "b^2-4ac= 9 + -8
\n" ); document.write( "b^2-4ac= 1
\n" ); document.write( "\"x=%28-b%2B-sqrt%28b%5E2-4ac%29%29%2F%282a%29\"
\n" ); document.write( "\"x1=%28-b%2Bsqrt%28b%5E2-4ac%29%29%2F%282a%29\"\r
\n" ); document.write( "\n" ); document.write( "substitute the values in the formula
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\n" ); document.write( "x1=( -3 + 1 )/ 4
\n" ); document.write( "x1= -0.5
\n" ); document.write( "x2=( -3 -1 ) / 4
\n" ); document.write( "x2= -1 \r
\n" ); document.write( "\n" ); document.write( "Now you know thesteps
\n" ); document.write( "solve the rest of them\r
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