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Consider the polynomials f(x)=1-12x+3x^2-4x^3+5x^4 and g(x)=3-2x-6x^3+5x^4. Find c such that the polynomial f(x)+cg(x) has degree 3.

 Sep 24, 2021
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'c' needs to be a number that causes  the 5x^4 in g(x) to become  - 5x^4

     then when f(x) is added to c g(x)   the 5x^4   will cancel out and you are left with degree 3

 

 

Got it ?

 Sep 24, 2021

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