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I forgot how to multiply polynomials and a problem that requires this skill showed up on my hw that it due tomorrow. 

 Feb 13, 2019
 #1
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Bummer for you , Dude......  cheeky

 Feb 13, 2019
 #2
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I know 

TheDeathlyHallows  Feb 13, 2019
 #3
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If you have  a sample, someone can show you how it is done,.......

ElectricPavlov  Feb 13, 2019
 #4
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Ok, the problem I need solved is (4x+17)*(3x+2)

TheDeathlyHallows  Feb 13, 2019
edited by TheDeathlyHallows  Feb 13, 2019
 #5
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Multiply  4x  times each of the terms in the second factor...then multiply 17 times each of the terms in the second factor...

    then collect like terms:

 

4x*3x + 4x * 2  + 17 * (3x) + 17 * 2

12x^2  +  59x + 34                                  Just be careful when there is a negative sign involved!

ElectricPavlov  Feb 13, 2019
 #6
avatar+63 
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thanks so much! It really helped me 

TheDeathlyHallows  Feb 13, 2019
 #7
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I thought I was done and apparently, I have a division problem. (x^2-5x+6)/((2x-1)+(x/2)) is the problem. 

TheDeathlyHallows  Feb 13, 2019
 #8
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Hey, DeathlyHallows!

 

It looks like you want to simplify x25x+62x1+x2 . Let's transform all the terms in the denominator such that they all have common denominators; this way, we will be able to add them together. 

 

2x1+x24x212+x2

 

Notice that I have not changed the value of the expression; I just created a common denominator. Now, combine like terms. 

 

4x212+x25x2125x12

 

Therefore, x25x+62x1+x2=x25x+65x12 . Now, it is time to simplify. 

 

x25x+65x12222(x25x+6)5x12(x2)(x3)5x1

 

Even after I factored the numerator completely, I did not find any common factors present in both the numerator and the denominator, so this expression is already in simplest form. 

TheXSquaredFactor  Feb 16, 2019

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