document.write( "Question 79119: how do i decide all values of b in the following equations that will give one or more real number solutions? If an equation has solution how do i write a rule for judging by looking at it in standard form?\r
\n" ); document.write( "\n" ); document.write( "a. 3x^2+bx-3=0
\n" ); document.write( "b. 5x^2+bx+1=0
\n" ); document.write( "c. -3x^2+bx-3=0
\n" ); document.write( "

Algebra.Com's Answer #56790 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
how do i decide all values of b in the following equations that will give one or more real number solutions? If an equation has solution how do i write a rule for judging by looking at it in standard form?\r
\n" ); document.write( "\n" ); document.write( "a. 3x^2+bx-3=0
\n" ); document.write( "b. 5x^2+bx+1=0
\n" ); document.write( "c. -3x^2+bx-3=0\r
\n" ); document.write( "\n" ); document.write( "----------
\n" ); document.write( "Rule:
\n" ); document.write( "b^2-4ac must be >=0
\n" ); document.write( "---------------
\n" ); document.write( "a. b^2-4*3*-3>=0
\n" ); document.write( "b^2>=-36
\n" ); document.write( "b can be any Real Number Value
\n" ); document.write( ".------------------------------------
\n" ); document.write( "b. b^2-4*5*3>=0
\n" ); document.write( "b^2>=60
\n" ); document.write( "b>=2sqrt15 or b<=-2sqrt15
\n" ); document.write( "------------------
\n" ); document.write( "c. b^2-4*-3*-3>=0
\n" ); document.write( "b^2>=36
\n" ); document.write( "b>=6 or b<=-6\r
\n" ); document.write( "\n" ); document.write( "=============
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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