Cuanto seria x en este problema: 3x(exponente 3) + 7x (exponente 2) - 10x - 4=0
a)1
b)1/3
c)2
d)2/3
e)4
f)4/e
a)1
b)1/3
c)2
d)2/3
e)4
f)4/e
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3x^3 + 7x^2 - 10x - 4=0
3( -1/3)^3 + 7(-1/3)^2 - 10(-1/3) - 4= 0
3(-1/27) + 7(1/9) - 10(-1/3) - 4 = 0
-1/9 + 7/9 + 10/3 - 4 = 0
6/9 + 10/3 - 4 = 0
4 - 4 = 0