Question

Need help on factoring trinomials:(

Answer 1

\[16a^2-8a+1\]

Answer 2

@johnweldon1993 @Luigi0210 @cwrw238

Answer 3

Well, judging by that 1 at the end, and that minus in the middle, we know it will be something like (a-1)(b-1)
Now the trick is finding a and b, which, might be the same thing, so any guesses? ლ(■_■ლ)

Answer 4

To solve that, first multiply 1 by 16:
a^2-8a+16
Now we need to find two numbers that multiply to 16, but add to -8. They are -4, and -4 so:
(a+4)(a+4)
Next we divide by 16
(4a+1)(4a+1) or
(4a+1)^2

Answer 5

Zeinas, check again :3

Answer 6

That'll give us:
\[\LARGE 16a^2+8x+1\]

Answer 7

*8a
Ugh, I keep confusing variables.

Answer 8

Again. lol @Luigi0210

Answer 9

@zeinas. your answer is not correct...

Answer 10

it's \[\LARGE (4a-1)^2\] :3

Answer 11

Lol stupid negative sign. @Luigi0210 is right. It should be (4a-1)^2

Answer 12

Yea, it is... @Luigi0210 how did u get it??

Answer 13

I've done so much factoring that's just second nature to me.. finding an explanation is the hardest part xD

Answer 14

But what I did was just look at the end, the +1. Which led to two possibilities, it could either have +1's or -1's.
The -8a confirmed that it was -1's, because if you add the +1's, then it will give you a positive number, right?
So last I just thought about what number multiplies to 16 and add's to 8, which was 4.

Answer 15

k thxs

Answer 16

Yup!