Question

factor the polynomial by grouping
u^2+uv-4u-4v

Answer 1

(u^2+uv)+(-4u-4v)
(uu+uv)+(-4u-4v)
u(u+v)-4(u+v)
(u+v)(u-4)

Answer 2

huh?

Answer 3

You confuse me ...

Answer 4

i did? lol

Answer 5

I thought that u just have to foil it out, like (a+b)(c+d). but maybe that's not what grouping is...

Answer 6

we want to find factors for that polynomial

Answer 7

(u-4)(u+v)

Answer 8

exactly those are factors

Answer 9

i tried that and it was wrong

Answer 10

factor by grouping
is usually done when you have 4 terms
and
you group the first pair together factor out what they have in common
then you look at the second pair and factor out what they have in common
and then you might be able to factor out something else to write it as
(x+y)(a+b)

Answer 11

its not wrong

Answer 12

nevermind lol