Question

does (2x+15)(x-2)=2x^2+13x+15

Answer 1

15(2) = 30 ..NOT 15...so I would have to say no

Answer 2

I just got that...

Answer 3

you typoed or else its wrong lol

Answer 4

how do you get thirteen?

Answer 5

No I just got that it was wrong lol

Answer 6

id be 15x-4x if anything and even that's bad....

Answer 7

FOIL the thing out dude :)

Answer 8

I don't think that's right.

Answer 9

I tried. I hate algebra lol

Answer 10

(2x+15)(x-2)

2x(x) + 2x(-2) +15(x) +15(-2)

Answer 11

2x^2 -4x +15x -30

2x^2 +11x -30

Answer 12

then wouldn't it be using 10 and 3?

Answer 13

would what be using 10 and 3 ?

what would make it true you mean?

Answer 14

yeah lol

Answer 15

never mind

Answer 16

what are the factor of 15?

1,15
3,5

thats your options right there if you want integer answers.

Answer 17

that's wrong too

Answer 18

well what I said

Answer 19

15+1 = 16

3+5 =8...so you dont get a right answer lol

Answer 20

Well what my teacher taught us to multiply the end numbers and factor the number from that

Answer 21

i hate shortcuts as answers, unless you understand the mechanics of what is going on in the problem; shortcuts just confuse the issue.

Answer 22

distribute the equations thru...

Answer 23

tell me: what does it mean to distribute?

Answer 24

a(b+c) = ??

a(b) + a(c) right?

Answer 25

I know what it means. This review for us. I just don't remember any of it.

Answer 26

did i just "distribute" that a thru the paranthesis?

Answer 27

yes

Answer 28

(f+l) (m+n)

distribute the first into the last there:

(f+l)(m) + (f+l)(n)

Now distribute again :)

f(m) + l(m) + f(n) + l(n)

Answer 29

that is HOW you solve the problem....the shortcut is FOIL or whatever acronym they feel like using...

Answer 30

when you forget the shortcuts, use the actual process ;)

Answer 31

ok, thanks lol