Thread: division help?

I understand the basic steps to this question, but it is just not clicking. I know I should be simplifying the x's but the 4 is throwing me off.

Find the quotient when 2x^3 + 13x^2 + 17x - 12 is divided by x + 4?

Originally Posted by lemon301

I understand the basic steps to this question, but it is just not clicking. I know I should be simplifying the x's but the 4 is throwing me off.

Find the quotient when 2x^3 + 13x^2 + 17x - 12 is divided by x + 4?

Hello,

use long division:

Code:

  (2x^3 + 13x^2 + 17x - 12) ÷ (x + 4) = 2x^2 + 5x - 3
 -(2x^3 +  8x^2)              
-----------------
          5x^2 + 17x
        -(5x^2 + 20x)
        --------------
                 -3x - 12
               -(-3x - 12)
               -----------
                        0