Question

Part 1:
In your own words, explain how a trinomial of the form 2x2 + 13x + 15 can be turned into a four term polynomial suitable for factoring by grouping. Use complete sentences.

Part 2:
If you were an Algebra 1 instructor and were creating a test on fa

Answer 1

I think I have part 1 but I need help with part 2.Part 2:
If you were an Algebra 1 instructor and were creating a test on factoring trinomials of the form ax2 + bx + c, what do you think would be the easiest way to create a trinomial that can be factored? Provide one unique example.

Answer 2

start with (x-a)*(x-b) pick a and b then expand

Answer 3

well, make it a binomial, raise to the 2nd power, then expand

Answer 4

I don't know how. I'm confused.

Answer 5

heheh, so how is it you finished part1, and dunno how to make part2 :/

Answer 6

if you finished part1, part2 is piece of cake

Answer 7

Somebody helped me do part 1

Answer 8

you mean, "someone else did it for you"

Answer 9

so you really really still dunno

Answer 10

I still don't know.

Answer 11

then YOU haven't done part1 either :/

Answer 12

so lets say x^2-6 x+8 is factored to
(x-2)*(x-4)

it is much easier if you were the instructered and piced 2 and 4
for
(x-a)*(x-b)

and expanded to get x^2-6 x+8 than it is for the student to factor x^2-6 x+8 and get
(x-2)*(x-4)
as answer

Answer 13

I have part one. I don't know if it is correct though

Answer 14

well, I can copy the theory of quantum mechanics too, just me having the papers, doesn't equate to me knowing what's in them
and the idea is to understand it, not to have it in ink

Answer 15

to that extent, I'd like to remind you that certificates and diplomas are just that, paper and ink, they're meaningless in themselves

Answer 16

completing the square to make a "perfect square trinomial"
http://www.youtube.com/watch?v=gzm-uhj06q8

Answer 17

I love Khan :D

Answer 18

hehe, he's quite good :)