Question

Please show steps so I understand this thoroughly.. (: Thanks!

Find the product.

(x - nu)(9x + 3nu)

Answer 1

Do you know the FOIL method?

Answer 2

hey ipwnbunnies

Answer 3

Not fairly well, however I could probably pickup on it.. If you guide me through it.

Answer 4

Have you done any quadratic equation stuff? Like, if you had (x+2)(x+3), can you expand it out?

Answer 5

Wouldn't that be x^2+5?

Answer 6

Not quite. It'll be x^2 + 5x + 6. Hold on.

Answer 7

Check out this little lesson: http://www.mathsisfun.com/definitions/foil-method.html

Answer 8

follow the distributive law

Answer 9

The page is blank for me @iPwnBunnies =[

Answer 10

Try this one lol: http://www.freemathhelp.com/using-foil.html

Answer 11

9x^2+3xnu-9xnu-3n^2x^2
9x^2-6xnu-3n6@u^2
i doubled check and this is correct

Answer 12

9x^2-6xnu-3n^2u^2

Answer 13

i tripled checked to make sure

Answer 14

Okay, let me check to see if I do this right though... So..

(x - nu)(9x + 3nu)

x * 9x = 9x^2

x * 3nu = 3nux ?

-nu * 9x = -9nux

-nu * 3nu = -3nu

Is that all right?

Answer 15

No, I'm wrong. Check your last product.

Answer 16

no
-nu*3nu=-3(nu)^2

Answer 17

Oh .. Whoops lol.

Answer 18

So now..

9x^2 + 3nux - 9 nux + -3nu^2

9x^2 -6nux - 3nu^2

?? Right

Answer 19

no
-3n^2u^2
thats why i used parenthesis last time. to tell you that both the n and the u are squared

Answer 20

Oh. Ok. Are they correct @iPwnBunnies ?

Answer 21

What Bsho posted is correct. You just messed up the 'L' in FOIL. the last term should be -3*n^2*u^2

Answer 22

Now, add up the terms to get your answer.

Answer 23

So instead it would be 9x^2 - 6nux -3n^2u^2 ?

Answer 24

that is correct

Answer 25

Correct, good job.

Answer 26

Thank you @iPwnBunnies and @Bsho1997 :)

Answer 27

your welcome