SOLUTION: x3+6x2+5x+30=0

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Question 45269: x3+6x2+5x+30=0
Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E3%2B6x%5E2%2B5x%2B30=0

This can be solved by factoring by grouping the first two terms and the last two terms together:
x%5E2%28x%2B6%29+%2B+5%28x%2B6%29+=+0
%28x%2B6%29%28x%5E2%2B5%29+=+0
x=+-6+ or x%5E2=+-5

If you are looking for real roots, there is only one, x= -6.

The other solutions would be x%5E2+=+-5, which are NOT real solutions. If you are solving complex solutions, then x=+0%2B-sqrt%28-5%29+=+0%2B-i%2A+sqrt%285%29+ and of course, x= -6.

R^2 at SCC