Factor the GCF: −4y2 + 12y − 16. −1(4y2 − 12y + 16) −4y(y2 − 3y + 4) −4(y2 − 3y + 4) −4(y2 + 3y − 4)
im not sure what the asnwer is to thi sone
Determine which polynomial is a perfect square trinomial. 25x2 − 40x − 16 9a2 − 20a − 25 25b2 − 15b + 9 16x2 − 56x + 49
d is the right one
@Mehek14 @ospreytriple
the GCF is the highest number that we can divide the equation on it in 1st question the 2nd and 4th options are wrong, so you have 2 options the 1st and 3rd now you can decide which one has the GCF
im going to go with the 3rd
good
ok how about the next one?
for next one do you know who is the perfect square?
d
is the answer nut im asking 2 make sure
i am not asking for answer i ask what is the perfect square in general?
[roducit of two intergers a number that can be expressed as a product of two integers
yea it is produced when a two similar numbers are multiplied each other for example 4*4=16 then 16 is a perfect square similarly (a+b)*(a+b)= \[a ^{2}+2ab+b ^{2}\] this is a perfect square
so if you want to find the answer factor out each equation, once you have two similar brackets that is your answer
ok i got d
yes right in simple way look at your equation both 16x^2 and 49 are perfect squares, and -56 is twice the product of 4x and 7 so it's a perfect square
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