Asked by ARIANA
solve the polynomial equation by finding all real roots
thanks again
x^3 + 6x^2 + 9x + 2 = 0
thanks again
x^3 + 6x^2 + 9x + 2 = 0
Answers
Answered by
oobleck
x^3 + 6x^2 + 9x + 2 = 0
(x+2)(x^2+4x+1) = 0
so, x = -2 is one root
use the quadratic formula to find the roots of the quadratic factor
(x+2)(x^2+4x+1) = 0
so, x = -2 is one root
use the quadratic formula to find the roots of the quadratic factor
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