Question

would (3x - 1) (3x - 1)
be 9x^2 - 6x + 1?

Answer 1

correct

Answer 2

That is correct ^_^

Answer 3

You're absolutely right. Bravo!

Answer 4

what about (x - 7) (x + 7)?

Answer 5

What is your answer?

Answer 6

oh wait

Answer 7

x^2 - 49..?

Answer 8

Yes!

Answer 9

correct

Answer 10

When you multiply that out. You'll get x^2-49. You have to cancel out the common terms!

Answer 11

for (4x - 2) (4x + 3) would it be 16x^2 + 4x - 6?

Answer 12

i got kinda confused on that one..

Answer 13

Correct again ^_^

Answer 14

really? wow thank you

Answer 15

can i still ask for help on some to make sure theyre correct?

Answer 16

Sure! You are awesome at this, why are you doubting yourself?

Answer 17

I have a test tomorrow at school and I'm doing my homework and im working out the problems but im trying to make sure they're correct so that i know that im doing them right because once i start doing a test....my mind goes blank

Answer 18

ah ok ^_^ I'm sure you will do fine

Answer 19

aww thanks!
well would (7x + 1) (7x - 1) be 49x^2 - 1? like the other one that i had earlier, but flipped around right?

Answer 20

yep :)

Answer 21

Thank you, and sorry if this is like...a waste of time or something, im just afraid ill get them wrong

Answer 22

It's ok :)

Answer 23

im not sure how to do this one....(x + y) (x + y)

Answer 24

@sleepyjess

Answer 25

FOIL, x*x? y*x? x*y? y*y?

Answer 26

i dont know what y times x would be..

Answer 27

@sleepyjess

Answer 28

Just yx, or xy

Answer 29

@sleepyjess would it be x^2 + 2xy + y^2

Answer 30

Yep :D

Answer 31

yay!!!!!!!!!!

Answer 32

See, you know this stuff :)

Answer 33

Would (x - 5) (x + 5) be x^2 - 25? @sleepyjess

Answer 34

Yep

Answer 35

i only have 6 more to go

Answer 36

Ok, could you open a new post?

Answer 37

would (2x - y) (2x + 2y) be 4x^2 + 2xy -2y^3...?

Answer 38

@sleepyjess

Answer 39

Almost, only the last term is incorrect

Answer 40

wait i meant 2y^2

Answer 41

would that be right?

Answer 42

Yep :)

Answer 43

Could you open a new post though? This one is getting kinda long :)

Answer 44

sure

Answer 45

Thanks! ^_^