Question

Can someone explain the distributive rule?

Answer 1

What don't you understand?

Answer 2

Sure!
basically
1(2+2)
add 1 to each of the factors
so you have
(1+2) + (1+2)
You distribute the outsider to each of the insiders. and it's not lonely anymore c: xD haha

Answer 3

That^ is NOT right at all

Answer 4

you multiply, not add, but the same idea yes.

Answer 5

so if the equation is
x(a+b)
then what you'd end up with, after distribution is
ax+bx

Answer 6

@Profunds77 $$4( 90 + 12) = 4*90 + 4*12$$ Note 4 distributes as a MULTIPLIER of each term of the sum 90 + 12.

Answer 7

what he said

Answer 8

I like using letters instead :)

Answer 9

I was looking at a question answered and they mentioned the distributive rule instead of the foil method just looking for new technics that I can apply

Answer 10

Thanks

Answer 11

FOIL as in:
First
Outside
Inside
Last

Are you taliking about that foil method?

Answer 12

Yes

Answer 13

FOIL is just a memory crutch to keep the work organized, but you're doing the distributive property.

\[(a + b)(c + d) = a(c+d) + b(c + d) = ac + ad + bc + bd\]
Compare with
\[(a+b)(c+d) = ac + ad + bc + bd\]Same thing.

Answer 14

Of course, if you prefer, this is equally valid:
\[(a+b)(c+d) = ac + bc + ad + bd\]
Whatever method gets you through it systematically and correctly....

Answer 15

\[A\star(B+ C)=A\star B+ A\star C\]