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Update Rational Expressions.md

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James Su 2019-12-30 03:48:55 +00:00
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Grade 10/Math/MPM2DZ/Math Oral Presentation Questions/Rational Expressions.md
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@ -22,9 +22,9 @@ Therefore the minimum amount of time it will take to complete the race is $`1.65
I would first flip the second fraction and then cross-cross out the common factors like so:
$`\dfrac{(x+3)(x-6)}{(x+4)(x+5)} \times \dfrac{(x+4)(x-7)}{(x-6)(x+8}`$
$`\dfrac{(x+3)(x-6)}{(x+4)(x+5)} \times \dfrac{(x+4)(x-7)}{(x-6)(x+8)}`$
We can cross out the $`(x+4)`$ and $`(x-6)`$ since the cancel each other out.
We can cross out the $`(x+4)`$ and $`(x-6)`$ since they cancel each other out.
The final fraction is therefore $`\dfrac{(x+3)(x-7)}{(x+5)(x+8)}`$