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Svetradugi [14.3K]
3 years ago
15

Given the function j(x)=x^2 and k(x)=-x^=7x-1

Mathematics
1 answer:
Kruka [31]3 years ago
7 0
The question is incomplete.

The complete question is:

Given the functions j(x) = x² − 9 and k(x) = −x + 7, which operation results in a 3rd degree polynomial?

Answer: the multiplication of j(x) and k(x)


Explanation:

<span>1) j(x) × k(x) = (</span><span>x² − 9) ( − x + 7)</span>

<span>2) Use distributive propery:
</span>

<span>(<span>x²)(- x) + (x²) (7)  + (-9)(-x) +  (− 9) ( 7) = - x³ + 7x² + 9x - 63
</span></span><span><span>
</span></span><span><span>
</span></span><span><span>The exponent of x is 3, hence this is a third degree polynomial.
</span></span>






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