please solve it quickly
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(a) a = b = c
(This is assuming that a, b, c are supposed to be real numbers!)
Step-by-step explanation:
x³ + 3x² + 3x + 2 = (x + 2)(x² + x + 1)
As x²+x+1 has complex conjugate roots, and the coefficients a,b,c are supposed to be real, the two common roots cannot be -2 and one of these complex roots. So they must be these two complex conjugate roots. It follows that ax²+bx+c = a(x²+x+1), so a=b=c.
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