Question

[8.07] Which polynomial is a difference of two squares?

x2 − 16

x2 + 16

x2 − 8

x2 + 8

Answer 1

"difference" implies subtraction, so we can ignore a few of the options from the start

Answer 2

the next part, by default, is to determine which options have 2 squares

Answer 3

in this case, 2 perfect squares i spose

Answer 4

thank you =)

Answer 5

good luck ;)

Answer 6

ok do you no which one it is??

Answer 7

i think i know which one they want, but that would just be an educated guess

there are actually 2 of them that fit, but im pretty sure they are wanting "perfect" squares

Answer 8

ok

Answer 9

can you narrow it down to the two that i am thinking of?

Answer 10

x2 − 16 x2 + 16

Answer 11

not the two i was thinking of, but I can work with that :)

which one of those uses subtraction in it? since "difference" implies subtracting

Answer 12

x2 − 8 x2 − 16

Answer 13

good, those are the two that deal with "differences.

x2 is one of the squares
i believe they are wanting 16 as the other square, since 4^2=16

the issue I have is that sqrt(8)^2 = 8, which is also "correct". Which leads me to believe that they are expecting a difference of "perfect" squares

Answer 14

good luck

Answer 15

kk