Hi, my exam is nov1 n im really panicking even the easiest things dont make sense Here's the problem x³ − 4x² + 2x + 4 = (x² − 2x − 2)(x − 2)
apparently the roots of this is supposed to be 2, 1+-the root of 3 sry cant find the symbol can u explain why?
Finding the roots is equivalent to finding the x-intercepts of its graph and this is done by setting y = 0:
If the product of two integers is equal to 0, then either one or both are 0. Let's see what x values would make each factor equal to 0:
So one root is x = 2.
As for the other one, it requires the quadratic formula:
Simplify the radical and you'll get your desired answer.
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