document.write( "Question 6274: I have to find all real and imaginary numbers. My guess is to factor, but I don't think it does.\r
\n" );
document.write( "\n" );
document.write( " 3x(x)+ 2x + 1 = 0 \n" );
document.write( "
Algebra.Com's Answer #3377 by xcentaur(357)![]() ![]() ![]() You can put this solution on YOUR website! 3x^2 + 2x + 1 = 0 \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "x=[-2 +- sqrt(4 - 4(3)(1))]/2(3) \n" ); document.write( "x=[-2 +- sqrt(4 - 4(3)(1))]/2(3) \n" ); document.write( "x=[-2 +- sqrt(4 - 12)]/6 \n" ); document.write( "x=[-2 +- sqrt(-8)]/6 \n" ); document.write( " \n" ); document.write( "Now the discriminant is less than zero (-8). Therefore there are no real solutions,both will be imaginary. \n" ); document.write( " \n" ); document.write( "square root of -8 = +- 2.8284271247461900976033774484194 \n" ); document.write( " \n" ); document.write( "x=[-2 +- i(2.8284271247461900976033774484194)]/6 \n" ); document.write( "
|