Question

Factor the GCF from ab + 5a - b - 5. I wrote it out the wrong way and got the wrong answer. but the right answer is (b+5)(a-1). How do I do it right?

Answer 1

ab + 5a
Can u plz tell me vat is common to both ab and 5a?

Answer 2

um . . . a?

Answer 3

ya u r right. nw when u factor it out what u get?

Answer 4

a(b + 5)

Answer 5

ya u r right.
Nw let us take -b-5.
Can u plz tell me vat is common to both -b and -5?

Answer 6

I got to (b+5). but Im confused on the -b-5 part. thats where I started to do things wrong. Sorry but Im not sure.

Answer 7

Nw can u tell me vat is common?

Answer 8

-1?

Answer 9

ya.
what u get when u factor it out?

Answer 10

@aimmeBgood

Answer 11

Im soo sorry, but im not sure :(

Answer 12

-b-5=-1(b+5)
Is it clear?

Answer 13

yes, thank you. I dont know why this one was confusing.

Answer 14

yw:)
Nw can u factorise ab + 5a - b - 5.?

Answer 15

yes :)

Answer 16

ok 5n:)