Question

Factor the GCF from each term in the expression. 7b(a-9)-4(a-9)..7b(a-9)-4(a-9)=??

Answer 1

What is common?

Answer 2

I will say (a-9). Why?

Answer 3

because that is in all of them right?

Answer 4

yes

Answer 5

ok so what would be my next step?

Answer 6

7b(a-9)-4(a-9)..7b(a-9)-4(a-9)= (a-9) (?)

Answer 7

ok im lost now

Answer 8

7b(a-9)-4(a-9)..7b(a-9)-4(a-9)= (a-9) (7b -4 -7b -4)
What is ..7b(a-9)?
is it -7b(a-9)?

Answer 9

yes so that would be my answer. -7b(a-9)?

Answer 10

?

Answer 11

7b(a-9)-4(a-9)..7b(a-9)-4(a-9)= (a-9) (7b -4 -7b -4)
7b(a-9)-4(a-9)..7b(a-9)-4(a-9)= (a-9) (-8)=8(9-a)

Answer 12

so 8(9-a) ?

Answer 13

yes

Answer 14

is the final answer?

Answer 15

?

Answer 16

or would i multiply 8 * 9

Answer 17

No. you should leave it in factored form.

Answer 18

i eneterd the 8(9-a) and it was wrong it said

Answer 19

That is the answer to the problem that you wrote down.

Answer 20

you realize the problem is just to the two .. right

Answer 21

it's not both i just typed it twice sorry

Answer 22

so the problem is 7b(a-9)-4(a-9)

Answer 23

The answer is (7b-4)(a-9)