Question

Multiply the expressions, and simplify.
(8x3y-3) · (3x3y-3)

Answer 1

actually i'll let thomas do this one =)

Answer 2

okay

Answer 3

do you know how to distribute?

Answer 4

some what yeah

Answer 5

this is just a distribution problem but it will take a little longer to compute

Answer 6

okay help me to start it and I should be able to figure it out I know 8*3 =24

Answer 7

do you add like exponents

Answer 8

sure your first term will be (8x3y * 3x3y)

Answer 9

let me expand it out for you and then you can try to see the patteren

Answer 10

okay

Answer 11

\[(8x3y-3) * (3x3y-3) = (8x3y*3x3y) + (8x3y*-3) + (-3*3x3y) +(-3*-3)\]

Answer 12

did my eqaution go off the screen for you?

Answer 13

yeah

Answer 14

haha sorry the part that is cut off is +(-3 * -3)

Answer 15

all I did was FOIL it out. Now you have to go about simplying it.

Answer 16

yeah but what about the exponents the problem was (8x^3y^-3) · (3x^3y^-3) sorry didn't see that when I posted it

Answer 17

don't you add the exponents when multiplying the main part of the problem

Answer 18

ah no problem you can slip them into the problem

when you mutiply two exponents with the same base you can add the exponents

for example

\[x^3 * x^5 = x^8\]

Answer 19

okay so then it is 24x^6y^-6 correct

Answer 20

yes!!!!

Answer 21

well done! that one can get messy

Answer 22

okay thought it was right but wasn't sure thanks again

Answer 23

yeah especially when it is posted wrong

Answer 24

I think I have found a new website for tutoring

Answer 25

everyone is so helpful