document.write( "Question 1070036: Please help factor this 10cx -30c -20x +60. Thanks \n" ); document.write( "
Algebra.Com's Answer #685127 by addingup(3677)![]() ![]() You can put this solution on YOUR website! The Greatest Common Divisor is 10: \n" ); document.write( "10 goes into 10 once, into 30 three times, into 20 twice, and into 60 six times. \n" ); document.write( "So factor the 10 out: \n" ); document.write( "10(cx-3c-2x+6) \n" ); document.write( "Now factor by grouping: \n" ); document.write( "cx-3c-2x+6 = (cx-2x)- 3(c-2) \n" ); document.write( "note here the change in sign. The result is correct: \n" ); document.write( "-3c = -3*c = -3c and -3*-2 = +6 \n" ); document.write( ": \n" ); document.write( "Next, factor the x out of the first two terms, and 3 out of the other two: \n" ); document.write( "10x(c-2)-3(c-2) \n" ); document.write( "Finally, what other common terms do we have? We have -2. Factor it out and rearrange the equation: \n" ); document.write( "10(c-2)(x-3) \n" ); document.write( "----------------------------------- \n" ); document.write( "Is this correct? Let's FOIL it (First, Outer, Inner, Last \n" ); document.write( "10(c*x+c-3-2*x-2*-3) = 10(cx-3c-2x+6) = 10cx-30c-20x+60 Correct \n" ); document.write( ": \n" ); document.write( "John \n" ); document.write( " \n" ); document.write( " |