12. Consider the function ƒ(x) = x^4 – x^3 + 2x^2 – 2x. How many real roots does it have? options:
A) 2
B) 1
C) 3
D) 4

Step-by-step explanation:

Hello, let's factorise as much as we can.

So, the solutions are

There are only 2 real roots.

Thank you.

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step-by-step explanation: