Find the polynomial expression given the following factors:

์กฐํ ์: 1 (์ต๊ทผ 30์ผ)
John Doe 2021๋ 11์ 26์ผ
ํธ์ง: Dyuman Joshi 2021๋ 11์ 26์ผ
Find the polynomial expression given the following factors:
1. (๐ฅ + 3)(๐ฅ โ 2)(๐ฅ + 2)(๐ฅ + 4)
>> r = [-3 2 -2 -4];
>> p = poly(r)
p =
1 7 8 -28 -48
Is this correct? I don't know how I can make the given into a proper polynomial expression. Also the 'syms' doesnt work on my matlab version which is R2019a.
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๋๊ธ์ ๋ฌ๋ ค๋ฉด ๋ก๊ทธ์ธํ์ญ์์ค.

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Dyuman Joshi 2021๋ 11์ 26์ผ
ํธ์ง: Dyuman Joshi 2021๋ 11์ 26์ผ
It is correct.
syms x
expand((x+3)*(x-2)*(x+2)*(x+4))
ansย =ย
You can also use sym2poly if you have the symbolic toolbox to convert syms variable into coefficients.
P.S - And syms should work in R2019a
๋๊ธ ์: 0์ด์  ๋๊ธ -2๊ฐ ํ์์ด์  ๋๊ธ -2๊ฐ ์จ๊ธฐ๊ธฐ

๋๊ธ์ ๋ฌ๋ ค๋ฉด ๋ก๊ทธ์ธํ์ญ์์ค.

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