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I just need help factoring or solving this one

I just need help factoring or solving this one-example-1
User Falstaff
by
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1 Answer

2 votes

Answer:

v = 1/2(1 + i√23) , 1/2(1 - i√23).

Explanation:

-2v^2 - v + 12 = -3v^2 + 6

-2v^2 + 3v^2 - v + 12 - 6 = 0

v^2 - v + 6 = 0

This will not factor so we could use the quadratic formula to solve it:

For the equation ax^2 + bx + c = 0 the roots are:

x = [ - b +/- sqrt(b^2 - 4ac) ] / 2a.

So here we have:

v = [-(-1) +/- sqrt((-1)^1 - 4*1*6)] / 2

v = [ 1 +/- sqrt (-23)] / 2

= 1/2 + i√23/2 , 1/2 - i√23/2

= 1/2(1 + i√23) , 1/2(1 - i√23).

User Ilari Scheinin
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4.3k points