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*_Artist_*
Group Title
Simplify (2 x  9)(4)can someone help me...No straight answers please...
 3 years ago
 3 years ago
*_Artist_* Group Title
Simplify (2 x  9)(4)can someone help me...No straight answers please...
 3 years ago
 3 years ago

This Question is Closed

polpak Group TitleBest ResponseYou've already chosen the best response.0
You just have to distribute the multiplication to each term \[(a + b)(c) = ac + bc\]
 3 years ago

*_Artist_* Group TitleBest ResponseYou've already chosen the best response.0
Okay....
 3 years ago

dariam Group TitleBest ResponseYou've already chosen the best response.0
why adding?
 3 years ago

dariam Group TitleBest ResponseYou've already chosen the best response.0
isnt it multiplying? (2*9)
 3 years ago

polpak Group TitleBest ResponseYou've already chosen the best response.0
So in your case you have (2x 9)(4) which is the same as (2x + (9))(4)
 3 years ago

polpak Group TitleBest ResponseYou've already chosen the best response.0
Oh, is that x for multiplication? or is it an x.
 3 years ago

dariam Group TitleBest ResponseYou've already chosen the best response.0
i think its multiplying... idk
 3 years ago

*_Artist_* Group TitleBest ResponseYou've already chosen the best response.0
i think it is just an x
 3 years ago

polpak Group TitleBest ResponseYou've already chosen the best response.0
So did that make sense with what you need to do Artist, or do you need a bit more help?
 3 years ago

*_Artist_* Group TitleBest ResponseYou've already chosen the best response.0
I'm not sure....
 3 years ago

polpak Group TitleBest ResponseYou've already chosen the best response.0
Ok lets try this. When you multiply a sum (a + b + c+ ...) by a number k. You simply multiply each of the terms in the sum by that same number k.
 3 years ago

polpak Group TitleBest ResponseYou've already chosen the best response.0
So in your case, what is the sum you're multiplying ?
 3 years ago

*_Artist_* Group TitleBest ResponseYou've already chosen the best response.0
(2 x  9)(4)
 3 years ago

polpak Group TitleBest ResponseYou've already chosen the best response.0
Not quite. (2x  9) is a sum.
 3 years ago

polpak Group TitleBest ResponseYou've already chosen the best response.0
Specifically it is the sum of 2x and 9
 3 years ago

polpak Group TitleBest ResponseYou've already chosen the best response.0
You know what a sum is right?
 3 years ago

polpak Group TitleBest ResponseYou've already chosen the best response.0
One of the most important things to learn in math is the vocabulary. Otherwise it is very difficult to understand what we are talking about if we aren't using the same words for things.
 3 years ago

polpak Group TitleBest ResponseYou've already chosen the best response.0
What is a sum?
 3 years ago

*_Artist_* Group TitleBest ResponseYou've already chosen the best response.0
A sum is the answer of two numbers added together...
 3 years ago

polpak Group TitleBest ResponseYou've already chosen the best response.0
Close. Actually a sum is a sequence of terms added together. 2 is not a sum. 2 + 3 is a sum. 2*5 is not a sum. 2+3 + 2*5 is a sum.
 3 years ago

*_Artist_* Group TitleBest ResponseYou've already chosen the best response.0
Oh...Okay.
 3 years ago

polpak Group TitleBest ResponseYou've already chosen the best response.0
Now then. For each of the sums I listed above, count the number of terms in each sum.
 3 years ago

*_Artist_* Group TitleBest ResponseYou've already chosen the best response.0
2, then 4?
 3 years ago

polpak Group TitleBest ResponseYou've already chosen the best response.0
Close. But notice that the 2 is not being added to the 5, it's multiplied. The terms of a sum are _ONLY_ the things being added together.
 3 years ago

polpak Group TitleBest ResponseYou've already chosen the best response.0
So how many terms does that last sum have?
 3 years ago

*_Artist_* Group TitleBest ResponseYou've already chosen the best response.0
*Lightbulb*...Okay...
 3 years ago

polpak Group TitleBest ResponseYou've already chosen the best response.0
I am glad I fanned you btw. You've been the best student I've seen here in a long time.
 3 years ago

polpak Group TitleBest ResponseYou've already chosen the best response.0
Yes, it has 3.
 3 years ago

*_Artist_* Group TitleBest ResponseYou've already chosen the best response.0
I'm the best?
 3 years ago

polpak Group TitleBest ResponseYou've already chosen the best response.0
Ok so now. Going back to what I was saying before.. If you have a number k multiplied by a sum. You simply distribute the multiplication of k to each term in the sum.
 3 years ago

polpak Group TitleBest ResponseYou've already chosen the best response.0
So lets look at your problem again.
 3 years ago

polpak Group TitleBest ResponseYou've already chosen the best response.0
(2x  9)(4) What is the sum, and what is k?
 3 years ago

*_Artist_* Group TitleBest ResponseYou've already chosen the best response.0
the sum is (2x9)?
 3 years ago

polpak Group TitleBest ResponseYou've already chosen the best response.0
Yes!. But I get confused easily, so can you rewrite that as an equivalent sum (equals the same thing) so that it is explicitly two terms being _ADDED_ together?
 3 years ago

polpak Group TitleBest ResponseYou've already chosen the best response.0
Can you rewrite subtraction as adding a negative?
 3 years ago

polpak Group TitleBest ResponseYou've already chosen the best response.0
29 = 2+(9) 7 = 7 Right?
 3 years ago

polpak Group TitleBest ResponseYou've already chosen the best response.0
So do the same thing to the subtraction you have in your sum
 3 years ago

polpak Group TitleBest ResponseYou've already chosen the best response.0
I like my sums to only have addition.
 3 years ago

polpak Group TitleBest ResponseYou've already chosen the best response.0
feels neater ;p
 3 years ago

*_Artist_* Group TitleBest ResponseYou've already chosen the best response.0
so, 2x + ( 9,) ?
 3 years ago

polpak Group TitleBest ResponseYou've already chosen the best response.0
So now you have this sum (2x + 9) and you're multiplying it by (4). So to do that you just multiply each term in the sum by the 4. (a + b)(c) = a*c + b*c
 3 years ago

polpak Group TitleBest ResponseYou've already chosen the best response.0
So what do you get?
 3 years ago

*_Artist_* Group TitleBest ResponseYou've already chosen the best response.0
4*2+ 4*9?
 3 years ago

polpak Group TitleBest ResponseYou've already chosen the best response.0
Close. Don't forget your x.
 3 years ago

*_Artist_* Group TitleBest ResponseYou've already chosen the best response.0
like that?
 3 years ago

polpak Group TitleBest ResponseYou've already chosen the best response.0
Yes, exactly.
 3 years ago

*_Artist_* Group TitleBest ResponseYou've already chosen the best response.0
Thank you!
 3 years ago
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