Question

factor completely. if polynomial is prime state this.
-16x^2-32x-7

Answer 1

-(4x+7)(4x+1)

Answer 2

Do u want to show all all the work or are u fine???

Answer 3

"prime" means "doesn't factor"

Answer 4

if you don't mind could u please show work. that way i can try to do the next one on my own. thank you for helping me out.

Answer 5

means
write "PRIME" if you cannot factor

Answer 6

Its k.I will give u an analogy u try with this for later probs too
For any second order linear equation ax^2+bx+c=0;
Just see that the middle one b must be factorised so that we can take common
Now b should be factorised in such a way that adding the two factors must give the value of b and their product must be equal to product of a*c..... For this u just multiply a and c and then u just try to write the miltiple of the product and check whetther they add to give the value b....
Now here i will explain u with this prob see
The given expression is -(16x^2+32x+7)
Now 16 * 7= 4*4*7=28*4
Now u can see adding 28 and 4 gives 32.
So the factors are 28 and 4.
Now it can be written as -(16x^2+28x+4x+7)
Implies -(4x(4x+7)+1(4x+7))
= -(4x+7)(4x+1)
And thats the required factors

Answer 7

thanks a lot i will remember that.

Answer 8

No probs