i understand how to do synthetic division. it isnt too difficult. but what do you do if the number youre dividing by is 2x-3, or something where the coefficient in front of x is not equal to one? someone said u set it to 0, but what does that mean? what do you divide by?
thanks=)
-psycho homework girl
2007-05-24 11:41:39 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Consider 6x² - x - 12 ÷ (2x - 3)
Now 2x - 3 = 2.(x - 3/2)
Step 1
divide by x - 3/2
3/2-----6----- -1------ -12
-----------------9--------12
---------6------8---------0
Q(x) = 6x + 8
Step 2
Divide Q(x) by 2
Q(x) ÷ 2 = 3x + 4
Thus 6x² - x - 12 ÷ 2x - 3 = 3x + 4
ie (2x - 3).(3x + 4) = 6x² - x - 12
Hope this example helps.
2007-05-24 19:27:47 · answer #1 · answered by Como 7 · 0⤊ 0⤋
what you have to do when you are doing synthetic division is get the coefficient of x e = to 1. Do this by dividing the coefficent out. for the example above, you would ge x=3/2. then you can do division
2007-05-24 21:07:08 · answer #2 · answered by runnerkap 2 · 0⤊ 0⤋