Question

Is this factored correctly?

Answer 1

-16t^2 + 28t + 8 = 0

Factors of 16: 1, 2, 4, 8, 16.
Factors of 28: 1, 2, 4, 7, 14, 28.
Factor of 8: 1, 2, 4, 8.
GCF: 4.

4(-16t^2/4 + 28t/4 + 8/4) = 4(-4t^2 + 7t + 2)

Answer 2

Yes this is correct, but incomplete, because
-4t^2 + 7t + 2 = -(4t+1)(t-2)

Answer 3

What method are you using to factor?

Answer 4

I was typing some ___ then erased it, ... I can't really explain it -:(

Answer 5

I am just using the GCF.

Answer 6

And my lesson didn't say anything about the last answer you got. How did you do it?

Answer 7

I am thinking backwards Sort of.
Like if you were to expand an expression like (x-4)(x+3) (or something like that) then you get x²-x-12.

And the backward thinking is that I am thinking what would the expression be in a form of (x+a)(x+v) (where a and v are numbers)

Answer 8

if your lesson is just about GCF then your answer is correct

Answer 9

however if you have been taught to factor then you must continue to factor

Answer 10

-16t^2 + 28t + 8 = 0
it is best to factor out a -4
-4(4t^2-7t-2)=0

Answer 11

4t^2-7t-2 I like to use the slide and divide method
it is also, known by other names
slide 4 out multiply it to the last term so 4 times 2 is 8
let's rewrite it
t^2-7t-8

Answer 12

look at your last term it is an 8
what are the factors of 8
1,2,4,8
you see the sign in front of 8, it is a minus sign
that tells you to subtract your factors

Answer 13

best to put it in this format
we are looking for the middle term

Answer 14

now our sign choices is negative
so (+)(-)=-
and (-)(+)=-
so do we want -1+8 or -8+1 remember what our middle term looks like

Answer 15

our middle term is -7t correct
so -1+8=+7
and +1-8=-7
so we want +1 and -8

Answer 16

this gives us t^2

Answer 17

gives us 8