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Okay sy master members next up in this ugly siri's

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of weird problems what is the simplified form of the

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expression Sixty over a plus b plus eh b over

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b squared minus a squared Simplify this thing well let's

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See we only add fractions when they have the same

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denominator Right Fractions with different denominators are like vinegar and

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baking soda You can't add them without making a real

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mess Yeah we've been there were tempted to go mad

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scientist to here on you but we shouldn't Since it's

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a difference of squares b squared minus a square there

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Well it can be factored Right factor is b minus

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a times b plus eh And a plus b equals

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b plus eh Is a factor of b squared minus

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a square Just multiply the first fraction sixty over a

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plus b by being kind to say over b money

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say which is one as long as b minus a

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isn't zero to give a denominator of b squared minus

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a squared See how that works That's what it looks

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like All right Well now we add the fractions Six

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b squared minus a b over b squared minus a

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squared plus a bee And that gets us this thing

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Six b squared minus a b plus eh b over

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b squared minus squared Well the two a b terms

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cancel out so we're left With the some six b

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squared over b squared minus a squared that's it uh

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give us the word problem is that it kind of 00:01:20.62 --> [endTime] funny Can't we go back to those

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