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Valentin [98]
3 years ago
11

Which of the following is a root of the polynomial shown below f(x)=x^3+2x^2-x-2

Mathematics
2 answers:
nevsk [136]3 years ago
6 0

Answer:

Roots: -1, 1, -2

Step-by-step explanation:

Aleks [24]3 years ago
3 0
F(x) = x^3 + 2x^2 - x - 2 
<span>f(x) = x^2(x + 2) - (x + 2) </span>
<span>f(x) = (x^2 - 1)(x + 2) </span>
<span>f(x) = (x + 1)(x - 1)(x + 2) </span>
<span>Roots: -1, 1, -2 </span>
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