Find the factors of 3a^2 + 14a − 24. (3a − 6)(a + 4) (3a − 4)(a + 6) (3a − 2)(a + 12) (3a + 2)(a − 12) i got the first option
How did you get that?
Hmm. Not quite, if you do the FOIL method on a, then it would give you something other than 3a^2 + 14a − 24.
I'm 12, and I only learned the basic way of factoring a trinomial. So if it was me doing that problem, I would guess and check. Though, I'm sure other people knows how to do it, properly. :)
if you need to know the true answer you must check
14a
\[3a ^{2} + 14a − 24. \] \[3a ^{2} +18a -4a − 24. \] \[3a(a+6) -4(a+6)\] (3a-4) (a+6)
18a-4a=14a which one give you this solution?????
I got B
If you do the FOIL method on b, then that would certainly give you 3a^2 + 14a − 24. Good job, @FilthyMcNasty :)
xD
@sylinan, you understand how i got B?
Yes, No, Maybe so?
yes (:
yes (:
Hmm. Teach me. c: I know that 18a - 4a = 14a. But how did you know which number to use?
\[3a ^{2}+14a−24.\] (you multiply the 1st and Last terms) so 3a^2*-24 = -72a^2 - So u find 2 terms whose product is -72a^2 & add up to 14a
Ah. I see. Thanks! :)
3a²+14a−24. (you multiply the 1st and Last terms) so 3a²*-24 = -72a² - So u find 2 terms whose product is -72a² & add up to 14a
If that's more legible , so yeah!
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