Factor completely: 3x^2-25x-18

Question

campbell_st · Answer

well here is a method that works all the time for factoring difficult quadratics

in the form 

$$ax^2+ bx + c$$

multiply a and c    so in your question its 3 and -18 = -54

find the factors of -54 that add to -25... the larger factor is negative

then its 

(ax + factor 1)(ax + factor 2)
--------------------------
                        a

look to remove common factors from the binomial... they will cancel with the denominator. 

what's left is the factored form...

hope this helps

campbell_st · Answer

or you can wait and someone will give you the answer

arbershabani97 · Answer

(x-9)(3x+2)

campbell_st · Answer

see... there you go... no need to worry about learning... when people give solutions...

anonymous · Answer

I did this myself with people example and I want to know if I am right 
x^2-3x+2 = (x-2)(x-1)