# Khan/khan-exercises

Improve hints

1 parent 8d21c48 commit daa0b218535e79402bdc09fca233e3e411f0487b petercollingridge committed Feb 15, 2013
Showing with 7 additions and 7 deletions.
1. +7 −7 exercises/dividing_polynomials_by_binomials_2.html
 @@ -18,11 +18,11 @@ randRangeNonZero( -10, 10 ) 1 - SQUARE*A*B - A*B - SQUARE*(-A-B) - -A-B - -C*B + SQUARE * A * B + A * B + SQUARE * (-A - B) + -A - B + C * -B

Simplify the following expression:

@@ -39,12 +39,12 @@

First factor the polynomial in the numerator.

-

We can factor out a C from the numerator:

+

We we notice that all the terms in the numerator have a common factor of C, so we can rewrite the expression:

\dfrac{C(plus(SQUARE + "x^2") + plus(LINEAR + "x" ) + CONSTANT)}{x + -A}

-

We then factor the remaining polynomial:

+

Then we factor the remaining polynomial:

x^2 SIMPLELINEAR >= 0 ? "+" : "" plus( "\\color{" + GREEN + "}{" + SIMPLELINEAR + "}x" ) SIMPLECONSTANT >= 0 ? "+" : "" plus( "\\color{" + BLUE + "}{" + SIMPLECONSTANT + "}" )