Question

Factor the trinomial

3x^2 + 17x - 6

Answer 1

3x^2 - 17x - 6 = ( 3x + 1)( x - 6)

Answer 2

im hoping uvkno the step??

Answer 3

Not really....

Answer 4

3x stays the same u kno that rite

Answer 5

3-2 is 1 u add

Answer 6

cancel out the 17

Answer 7

and the that leave u with x-6

Answer 8

how do you know to subtract 3-2?

Answer 9

http://mathsfirst.massey.ac.nz/Algebra/factorisation/QuadFactor.htm

Answer 10

Factors of 3

1, 3

Factors of -6

1, -6
-1, 6
2,-3
-2,3

Which combination produces +17 in the middle?

3*3 = 9
1*2 = 2

Okay, all the 2-3s are out.

We're down to this:

(x + 1)(3x - 6) = ??
(x - 1)(3x + 6) = ??

Which one works?

Answer 11

Good lord, I am lost.......

Answer 12

Just enumerate the possibilities. In this case, there are only four. Simply try them out!