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

- anonymous

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

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- anonymous

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

- anonymous

I just got that...

- anonymous

you typoed or else its wrong lol

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## More answers

- anonymous

how do you get thirteen?

- anonymous

No I just got that it was wrong lol

- anonymous

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

- anonymous

FOIL the thing out dude :)

- anonymous

I don't think that's right.

- anonymous

I tried. I hate algebra lol

- anonymous

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

- anonymous

2x^2 -4x +15x -30
2x^2 +11x -30

- anonymous

then wouldn't it be using 10 and 3?

- anonymous

would what be using 10 and 3 ?
what would make it true you mean?

- anonymous

yeah lol

- anonymous

never mind

- anonymous

what are the factor of 15?
1,15
3,5
thats your options right there if you want integer answers.

- anonymous

that's wrong too

- anonymous

well what I said

- anonymous

15+1 = 16
3+5 =8...so you dont get a right answer lol

- anonymous

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

- anonymous

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

- anonymous

distribute the equations thru...

- anonymous

tell me: what does it mean to distribute?

- anonymous

a(b+c) = ??
a(b) + a(c) right?

- anonymous

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

- anonymous

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

- anonymous

yes

- anonymous

(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)

- anonymous

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

- anonymous

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

- anonymous

ok, thanks lol

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