how do you factor "pq - 2q + 2p - 4"
2006-12-12 14:56:50 · 9 answers · asked by mtu_blue_eyes 1 in Science & Mathematics ➔ Mathematics
you have to factor by grouping.
First you take a q out of (pq-2q) and your left with q(p-2) then you have to factor out a 2 from (2p-4) after that you then will end up with 2(p-2) okay you paper should look like this
q(p-2)+2(p-2) and since the two terms in the parens are the same you can group even more and simplify.
the final answer is
(q+2)(p-2). I hope this was helpful.
2006-12-12 15:01:20 · answer #1 · answered by gatorboi19884870 3 · 1⤊ 0⤋
you do it by grouping > Groupng involves:Group the first 2 terms together and do likewise to the last 2 terms
as done below :
(pq - 2 q ) ( +2p - $ )
factor the first group
( pq - 2 q )
q ( p - 2 )
factor the last group
( + 2p - 4 )
2 (p - 2 )
combine the terms
( q( q + 2 ) ( p - 2 )
2006-12-12 23:12:11 · answer #2 · answered by Anonymous · 0⤊ 1⤋
pq - 2q + 2p - 4 = p(q+2) - 2(q+2) = (q+2)(p-2)
2006-12-12 23:00:44 · answer #3 · answered by kellenraid 6 · 1⤊ 1⤋
pq - 2q + 2p - 4
(pq - 2q) + (2p - 4)
q(p - 2) + 2(p - 2)
(q + 2)(p - 2)
2006-12-12 23:04:13 · answer #4 · answered by Sherman81 6 · 1⤊ 0⤋
You would want to factor by grouping. so take a q out of the first two and a 2 out of the 3rd and fourth. so you are left with q(p-2)+2(p-2)...after that u are left with (q+2)(p-2). and then ur done.
2006-12-12 23:05:44 · answer #5 · answered by Matt 2 · 0⤊ 0⤋
(q + 2) (p - 2)
2006-12-12 23:00:47 · answer #6 · answered by m&m 2 · 0⤊ 0⤋
(p+2)(q-2)
2006-12-12 22:59:14 · answer #7 · answered by Mooshak 3 · 0⤊ 2⤋
its really simple the answer is (p-2)(q+2) just remember FOIL
2006-12-12 23:01:28 · answer #8 · answered by =D 2 · 0⤊ 0⤋
(p+2)(q-2)
Good luck!
2006-12-12 23:06:20 · answer #9 · answered by Alex 3 · 0⤊ 1⤋