document.write( "Question 86115: Please show me the step by step process to divide the following:\r
\n" ); document.write( "\n" ); document.write( "2x-6 over 21 divided by 5x-15 over 12.\r
\n" ); document.write( "\n" ); document.write( "Thank you so much! \n" ); document.write( "

Algebra.Com's Answer #62226 by checkley75(3666) $\"\"$ $\"About$

You can put this solution on YOUR website!
[(2X-6)/21]/[(5X-15)/12] TO SIMPLIFY THIS PROCESS WE NEED TO INVERT THE DENOMINATOR AND THEN MULTIPLY.
\n" ); document.write( "[(2X-6)/21]
\n" ); document.write( "(2X-6)(5X-15)=12*21
\n" ); document.write( "10X^2-30X-30X+90=252
\n" ); document.write( "10X^2-60X+90-252=0
\n" ); document.write( "10X^2-60X-162=0
\n" ); document.write( "TO SOLVE THIS EQUATION WE NEED TO USE THE QUADRATIC EQUATION.
\n" ); document.write( " $\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"$
\n" ); document.write( "X=(60+-SQRT[-60^2-4*10*-162])/2*10
\n" ); document.write( "X=(60+-SQRT[3600+6480])/20
\n" ); document.write( "X=(60+-SQRT10080)/20
\n" ); document.write( "X=(60+-100.4)/20
\n" ); document.write( "X=(60+100.4)/20
\n" ); document.write( "X=160.4/20
\n" ); document.write( "X=8.02 ANSWER.
\n" ); document.write( "X=(60-100.4)/20
\n" ); document.write( "X=-40.4/20
\n" ); document.write( "X=-2.02 ANSWER. \n" ); document.write( "

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