document.write( "Question 1035725: im not sure if i selected the right topic but i need to solve this math equation by completing the square the problem is -3x squared+18x=-30 \n" ); document.write( "
Algebra.Com's Answer #650375 by rothauserc(4718)![]() ![]() You can put this solution on YOUR website! -3x^2 + 18x = -30 \n" ); document.write( ": \n" ); document.write( "divide both sides of = by -3 \n" ); document.write( ": \n" ); document.write( "x^2 - 6x = 10 \n" ); document.write( ": \n" ); document.write( "divide -6 by 2 and square it, then add result to both sides of = \n" ); document.write( ": \n" ); document.write( "x^2 - 6x + 9 = 10 + 9 \n" ); document.write( ": \n" ); document.write( "(x - 3)^2 = 19 \n" ); document.write( ": \n" ); document.write( "now take square root of both sides of = \n" ); document.write( ": \n" ); document.write( "x - 3 = + or - square root(19) \n" ); document.write( ": \n" ); document.write( "*********************** \n" ); document.write( "x = 3 + square root(19) \n" ); document.write( "x = 3 - square root(19) \n" ); document.write( "*********************** \n" ); document.write( ": \n" ); document.write( " \n" ); document.write( " |