anonymous
  • anonymous
x^3+x^2+x/-x dividing a polynomial by a monomial, two ways used to simplify this expression
Mathematics
  • Stacey Warren - Expert brainly.com
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schrodinger
  • schrodinger
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anonymous
  • anonymous
We will say you are given the expression x^2+15x+56 and you are asked to find the other factor when the first factor you received is x+8 . long division x+8 into x^2+15x+56 always use the leading coefficient of what you want to go into something such as x+8 into X^2+15x+56 how many times does x go into x^2 - x^2+8x -------------------- since you are dividing you would subtract to get your answer x^2-x^2=0 15x-(+8x) 7x + 56 is equal to 7x how many times does x go into 7x x+7 -7x+56= -7x-56 7x+56 -7x-56 ----------- 0 or you could set it up like a fraction which is really what division really is x^2+15x+56 if the polynomial factors here you can use this method --------------------- x+8 x^2+15x+56 (x+8) (x+7) what multiplied comes out to 56 and added will equal 15 8,7 (x+8)(x+7) ---------------- (x+8) the 2 x+8 's cancel and you have x+7 as your answer
anonymous
  • anonymous
your the best, thanks
anonymous
  • anonymous
welcome

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anonymous
  • anonymous
@jonjenkins7653 how would i check this?

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