document.write( "Question 350558: Please help me solve these equations. I don't know where to begin with these.\r
\n" );
document.write( "\n" );
document.write( "√5x – 4 =6\r
\n" );
document.write( "\n" );
document.write( "√y + 10 = y - 2\r
\n" );
document.write( "\n" );
document.write( "√5x^2 – 3x = 2x\r
\n" );
document.write( "\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #250568 by mananth(16946)![]() ![]() You can put this solution on YOUR website! sqrt(5x)-4=6 \n" ); document.write( "add 4 \n" ); document.write( "sqrt(5x)-4+4=6+4 \n" ); document.write( "sqrt(5x)=10 \n" ); document.write( "square \n" ); document.write( "5x = 100 \n" ); document.write( "/5 \n" ); document.write( "x= 100/5 \n" ); document.write( "x=20 \n" ); document.write( ".... \n" ); document.write( "sqrt(y)+10 = y-2 \n" ); document.write( "sqrt(y)= y-2-10 \n" ); document.write( "sqrt(y)=y-12 \n" ); document.write( "square \n" ); document.write( "y=(y-12)^2 \n" ); document.write( "y=y^2-24y+144 \n" ); document.write( "y^2-25y+144=0 \n" ); document.write( "y^2-16y-9y+144 \n" ); document.write( "y(y-16)-9(y-16)=0 \n" ); document.write( "(y-16)(y-9)=0 \n" ); document.write( "y-16 OR y=9 \n" ); document.write( "... \n" ); document.write( "sqrt(5)x^2-3x=2x \n" ); document.write( "sqrt(5)x^2=3x+2x \n" ); document.write( "sqrt(5)x^2=5x \n" ); document.write( "square \n" ); document.write( "5x^4=25x^2 \n" ); document.write( "5x^4-25x^2=0 \n" ); document.write( "5x^2(x^2-5)=0 \n" ); document.write( "x=0 OR x= +/- sqrt5 \n" ); document.write( " |