document.write( "Question 604246: solve z^2 = -z+1 by using the quadratic formula \n" ); document.write( "
Algebra.Com's Answer #381032 by flame8855(424)![]() ![]() You can put this solution on YOUR website! z^2 +z-1=0 \n" ); document.write( "a = 1 b =1 c = -1 \n" ); document.write( "delta = b^2-4ac = 1-4(1)(-1)= 5 \n" ); document.write( "x1= (-1-sqrt5)/2 \n" ); document.write( "x2= (-1+sqrt5)/2 \n" ); document.write( " |