Question

help
The first step in factoring a trinomial of the form ax^2+bx+c is to find two numbers, m and n, such that m + n = b and _____

A.
mn=ab
B.
mn=bc
C.
mn=ac
D.
mn=x^2

Answer 1

do you know how to factor this:

2x^2+3x+1 ?

Answer 2

like what would you do to go about factoring it

Answer 3

x+1, 2x+1

Answer 4

i guess those are the factors you found
so saying you got (x+1)(2x+1)
but how did you get that?

Answer 5

the how part is important
for this particular question

Answer 6

try multiplying (x+1) and (2x+1) out
(x+1)(2x+1)
2x^2+2x+1x+1
2x^2+(2+1)x+1
look at the b term notice in your question that is your b=m+n
what happens in our example if you multiply the m and n?

Answer 7

have you notice that b has been written as m+n
that is your 3 has been written as 2+1 (do you notice this?)