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Aden
28 May, 04:32
12x cubbed - 9x squared + 4x-3=0
+4
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1
)
Reyna
28 May, 05:14
0
roots are ...
±i√3/3 3/4
Step-by-step explanation:
The equation can be factored by grouping:
(12x^3 - 9x^2) + (4x - 3) = 0
3x^2 (4x - 3) + (4x - 3) = 0
(3x^2 + 1) (4x - 3) = 0
The equation has roots that are the values of x making these factors zero:
3x^2 + 1 = 0
x^2 = - 1/3 = - 3/9
x = ± (i/3) √3
and
4x - 3 = 0
4x = 3
x = 3/4
The one real root is x = 3/4; the two complex roots are ±√3/3.
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