Destinyyyy
  • Destinyyyy
Can someone explain this to me? Multiply and Divide rational expressions.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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Destinyyyy
  • Destinyyyy
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Destinyyyy
  • Destinyyyy
Im confused by the greatest common factor part.
anonymous
  • anonymous
Forget about what's written. You know how to dance terms ?

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Destinyyyy
  • Destinyyyy
What? O.o
anonymous
  • anonymous
Lol , cancel terms I mean
Destinyyyy
  • Destinyyyy
Um yeah
anonymous
  • anonymous
Powers in the denominator and numerator cancels each other. If we have common factors, the powers in the numerator - powers in the denominator gives you simplified form
anonymous
  • anonymous
The problem now is to find these common factors, well you can't tell that you have or don't have common factors unless you factor all the expression to the prime factors, like x^2-1 =(x-1)(x+1)
Destinyyyy
  • Destinyyyy
Um what? O.o I just want to know how the example got x^6 and x^8 is x^6 and same for y
anonymous
  • anonymous
I told what's written is confusing, it's trying to say that x^8=x^6*x^2, so x^8/x^6= x^2
anonymous
  • anonymous
Basically, we express this procedure by saying power of the numerator-power of the denominator
Destinyyyy
  • Destinyyyy
Yes 8-6=2 .. But that not what the answer is showing
anonymous
  • anonymous
The answer is not in the simplified form. He was writing the similar terms in top of each other, so that he can cancel them easily
Destinyyyy
  • Destinyyyy
Um okay.. Then y is 1?
anonymous
  • anonymous
The expression will develop to simple form, 95% percent you will NOT get a number, just x and y
Destinyyyy
  • Destinyyyy
Um okay? So whats the final answer?
anonymous
  • anonymous
In our case, it's ((x-6)*y)/x^2
Destinyyyy
  • Destinyyyy
Okay.. For the problem im working on-- x^4-x^5=? y^6-y^5=? x=-1 y=1
Destinyyyy
  • Destinyyyy
The original problem is --- Multiply- x^3-64/ x^5y^5 * x^4y^6/x^2+4x+16
anonymous
  • anonymous
The final form is (x-4)*y/x, I followed exactly the same procedure, now just the numbers..
Destinyyyy
  • Destinyyyy
Okay.. So I just ignore that is a negative?
anonymous
  • anonymous
Don't ignore anything \[((-1)-4)*1/(-1)=?\]

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