Question

(a − b)(a − b) is a^2 − b^2
always
sometimes
or never

Answer 1

Did you do the multiplication and see what you get?

Answer 2

(a − b)(a − b)

a * a = a^2
a * -b = -ab

-b * a = -ab
-b * -b = + b

so:
a^2 - ab - ab + b

then:
a^2 - 2ab + b

Answer 3

Do you see why?

Answer 4

Two examples:
(8-5)(8-5) what does that equal?
(0-0) (0-0) and that?

Answer 5

We have been doing these kind of problems, do you understand now??

Answer 6

so i wwould do the same i did for this one ike i did with the others? @some_someone

Answer 7

yeah, basically you do multiplication, or FOIL

Answer 8

so it would be never?

Answer 9

(a − b)(a − b) is a^2 − b^2
THIS IS FALSE.

Answer 10

yeh never...

Answer 11

well um thanks....:)

Answer 12

for your help