– [Voiceover] We’re asked

to apply the distributive property to factor out the

greatest common factor, and we have 35 plus 50 is equal to, so let me get my scratch pad out. So we have 35 plus 50 is equal to, now what is the greatest

common factor of 35 and 50. So what’s the largest whole number that’s divisible into both of these. Well I could write 35 as, let’s see, I could write that as five times seven, and I could write 50 as five times ten, and so we see five is the

greatest common factor. Seven and ten don’t have

any factors in common. So I could rewrite this, I could write 35 as

equal to five times seven and I could rewrite 50 as equal to, get another color here, I could rewrite 50 as five times ten, and of course, I’m adding them, so I have plus right over here. If I want, I could put parentheses, but order of operations would make me do the multiplication first, anyway. But now I want to factor out

that greatest common factor. I want to factor out the five. So what I’m really doing right over here is I’m unwinding the

distributive property. So if I factor out a five,

this is going to be equal to, this is going to be equal to

let’s factor out the five. Five times, so you do 35 divided by five, you’re just left with the seven. You’re just left with the seven over here. So you’re just left with the seven after you’ve factored out the five, and over here, you’re

just left with the ten. So five, or seven plus ten, and we’re done. 35 plus 50 is equal to

five times seven plus ten. So let me now go and type that in. So this is the same thing as five, five times seven plus ten. And you know you’ve factored out the greatest common factor because seven and ten don’t have any

factors in common anymore. They’re called relatively prime. They have no factors in

common other than one. So we could now check that. Let’s do a couple more of these. Apply the distributive

property to factor out the greatest common factor. So let’s see if we can just do

this one a little bit faster. So let’s see, the largest

number it’s divisible, in both 75 and 20, I don’t

know, let me try five. So if I say five times,

so 75 divided by five, let’s see is going to

be, it’s going to be 15. Is that right? Yeah, cause five times ten

is 50, five times five is 25. Yeah, so it’s 15, and I got that 15 by dividing 75 by five. So 15 plus, and then 20

divided by five would be, 20 divided by five would be four. 15 plus four. Let’s see, did I do this right? 15 and four don’t have

any factors in common, and if I were to apply the

distributive property here, I’d have five times 15 is 75. Five times four is 20. Yeah, I’m feeling good about that. We got it right.

Thank you!!!!!!!

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i

What does he use to draw?

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Thanks

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10 isn't prime …

hey

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where did you get the 7 from?

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