document.write( "Question 495739: how do you solve this by using the quadratic equation using the quadratic formula. $\"2x%5E2-3x-2=0\"$ \n" ); document.write( "

Algebra.Com's Answer #336371 by cleomenius(959) $\"\"$ $\"About$

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A = 2
\n" ); document.write( "B = -3
\n" ); document.write( "C = -2\r
\n" ); document.write( "\n" ); document.write( "the formula is =(-b +,- $\"sqrt%28b%5E2+-+4ac%29%29\"$ / 2a)
\n" ); document.write( "(-3)^2 -( 4(2)(-2) ) = 9 + 16 =25
\n" ); document.write( " $\"%2825%29\"$ = 5
\n" ); document.write( "3 + 5 = 8/4= 2
\n" ); document.write( "3 - 5 = -2/4 = -1/2
\n" ); document.write( "======================================================
\n" ); document.write( "To check:
\n" ); document.write( "2(2)^2 - 3(2) -2 = 0
\n" ); document.write( "2(-1/2)^2 - 3(-1/2) -2= 0
\n" ); document.write( "These do check.
\n" ); document.write( "Cleomenius.\r
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