How do you factor ax-2ax-3a+2x [Answer is Prime, But i dont know how you figure that out] Please explain how i can figure out of an equation is unfactorable or prime . Thanks in advance
2007-01-04 15:11:17 · 5 answers · asked by Choho855 1 in Science & Mathematics ➔ Mathematics
Yet again, Keely saves the day =]. Thanks for explaining it to me for all three of my questions. I'm voting you best answer for all =]
2007-01-04 15:20:30 · update #1
ax-2ax-a+2x
=a(x-2a)-1(a-2x)
so even when we group the terms we are unable to find a common factor.so this is irreducible
2007-01-04 15:16:58 · answer #1 · answered by raj 7 · 0⤊ 0⤋
Check the equation but if it is correct...
You can collect like terms first. ax - 2ax + 2x = -ax + 2x = x(2-a)
This makes the expression: (2-a)x - 3a which cannot be factored further. This means it is prime...only it self and 1 are factors!
2007-01-04 23:14:57 · answer #2 · answered by keely_66 3 · 0⤊ 0⤋
Step one simplify like factors, in this case ax - 2ax = -ax
ax-2ax-3a+2x = 2x -ax -3a
now, notice we have no exponents?
That means we've simplified the factors.
That's how you know you've gotten it down to prime.
2007-01-04 23:20:32 · answer #3 · answered by Jason W-S 4 · 0⤊ 0⤋
from my knowledge, u add the common like terms, which are ax-2ax. so now the answer would be -ax-3a+2x. there is nothing else u can do...hopefully that's right because i did this awhile ago....good luck!! (for the answer, u can notice that they have nothing else in common, so its unfactorable.)
2007-01-04 23:16:06 · answer #4 · answered by lattekiwi 1 · 0⤊ 0⤋
-2ax+ax-3a+2x
2007-01-04 23:16:36 · answer #5 · answered by mark g 1 · 0⤊ 0⤋