Question

any thoughts on this one multiply and simplify the expression (3b-2)(4b-4)

Answer 1

Do FOIL method. Multiply First, Outer, Inner, and Last terms together and add them up.

Answer 2

12b^2-12b-8b+8=12b^2-20b+8

Answer 3

Or, you can do this

(3b-2)(4b-4)

3b(4b-4) - 2(4b-4)

I'll let you finish

Answer 4

so is this even close 12b-18

Answer 5

what is 3b(4b-4)

Answer 6

what does it distribute out to

Answer 7

12b-4

Answer 8

3b times 4b = ???

Answer 9

no wait 12b^2

Answer 10

what is 3b times -4?

Answer 11

-12

Answer 12

-12b

Answer 13

since that b gets tacked on the end

Answer 14

ok

Answer 15

so

3b(4b-4)

becomes

12b^2 - 12b

Answer 16

do the same with the other group

Answer 17

so now I am multiply 2 times 4b-4 correct

Answer 18

so minues -8b-8 correct

Answer 19

the final answer would look like this 12b^2-12b-8b-8 is this what the final answer should look like

Answer 20

We want to distribute -2(4b - 4), so


-2 times 4b = -8b

-2 times -4 = 8

----------------

This means

-2(4b - 4)

becomes

-8b + 8

Answer 21

So we now have


(3b-2)(4b-4)

3b(4b-4) - 2(4b-4)

12b^2 - 12b - 8b + 8

Answer 22

that's not the final answer, but one step away from it

Answer 23

12b^2-20b+8 Final

Answer 24

good

Answer 25

thank you very much

Answer 26

np