2007-11-12 13:32:38 · 9 answers · asked by lfmc 1 in Science & Mathematics ➔ Mathematics
Because the ab and the -ab cancel each other out.
a^2+ab-ab-b^2
This results in a binomial (specifically, the difference of two squares).
a^2-b^2
2007-11-12 13:36:34 · answer #1 · answered by Anonymous · 1⤊ 0⤋
I thought trinomial has three terms. I don't know didn't learn this yet
2007-11-12 13:56:11 · answer #2 · answered by Black Ninja12 3 · 0⤊ 0⤋
you are only multiplying 2 polynomials so the answer is a binomial. if you add another one, then the answer would be a trinomial, and so on
2007-11-12 13:36:25 · answer #3 · answered by <3 3 · 0⤊ 1⤋
a^2-b^2
2007-11-12 13:35:54 · answer #4 · answered by Ms. Exxclusive 5 · 0⤊ 0⤋
Because according to the well-known formula, namely a^2 - b^2, there are only two terms!!
2007-11-13 08:17:53 · answer #5 · answered by Curt Monash 7 · 0⤊ 0⤋
this si called a "difference of 2 squares"
that means that when you foil it out becuase the signs are different teh middle terms cancel each other out and you are left with a binomial.
- i don't let my algebra kids pass if they cant recognize this!
2007-11-12 13:36:12 · answer #6 · answered by a c 7 · 1⤊ 0⤋
because the middle term will be zero (ab -ab)
2007-11-12 13:35:28 · answer #7 · answered by davidosterberg1 6 · 1⤊ 0⤋
because ab and -ab cancel when added together.
2007-11-12 13:35:16 · answer #8 · answered by Anonymous · 1⤊ 0⤋
um.. becuase... (a+b) (a-b) is a^2-b^2. because ab-ab is zero...
2007-11-12 13:35:40 · answer #9 · answered by Anonymous · 1⤊ 1⤋