At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga.
Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus.
Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get our expert's

answer on brainly

SEE EXPERT ANSWER

Get your **free** account and access **expert** answers to this and **thousands** of other questions.

I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!

have u tried this ?

ya im supposed to find the GCF but i don't think there is one so i dont know what to do

GCF ?
first put x^2=y
what u get ?

why would x^2 equal y

oh, it was just for simplification,
u can put x^2 =t .... or z ..

i didn't mean that y on left side...

square root both sides

so just use the quadratic formula

or u can factor it .

the answer is -4 or 4 but the answer is supposed to be -2 or 2

how do i factor it

yes, because x^2 is 4,4

t^2-8t+16 = 0
t^2 -4t -4t +16 = 0

ok?

what u got t as ?

im sorry what?

t^2 -4t -4t +16 = 0
can u solve for t ?

no thats why i asked

t^2 -4t -4t +16 = 0
factor out t from first 2 terms , what u get ?

i mean t(t-8)+16=0

t^2 -4t -4t +16 = 0
from this....
factor out t from 1st 2 terms....

thats what i thought i just did

u factored t from t^2 -8t +16 = 0
i asked u to factor out t from t^2 -4t -4t +16 = 0

t(t-4-4)+16=0

i mentioned 'from first two terms' ...

t(t-4-4t)+16=0

t^2-4t-4t+16=0
t(t-4) -4 (t-4) = 0
did u get this ?

oh ok that makes sense

t(t-4) -4 (t-4) = 0
(t-4)(t-4) =0
i factored t-4 from that, got this ?

how did u get rid of the t and -4 ouside the parentheses

i did not get rid of that...its in the 2nd brackets '()' ... (t-4)

ok

so, t=4,4
which gives u
x^2 = 4, 4

so whats x = ?

x=2 and -2

x=+or - the square root of 4