Becky1979 Becky1979

15-07-2017
Mathematics

contestada

Find all complex solutions of 3x^2+6x+1=0 . (If there is more than one solution, separate them with commas.)

Respuesta :

mathmate mathmate

15-07-2017

Use the quadratic formula:
for equation Ax^2+Bx+C=0
x=(-b +/- sqrt(b^2-4ac))/2a
substituting,
=(6 +/-sqrt(6^2-4*3*1))/(2*3)
=(6 +/- 0)6
=1 multiplicity 2. (both real)
If the complex form is required, then
{1+0i, multiplicity 2}

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