SOLUTION: Solve {{{x^2+6x+8=0}}}

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Question 143031: Solve x%5E2%2B6x%2B8=0
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

x%5E2%2B6x%2B8=0 Start with the given equation

%28x%2B4%29%28x%2B2%29=0 Factor the left side (note: if you need help with factoring, check out this solver)



Now set each factor equal to zero:
x%2B4=0 or x%2B2=0

x=-4 or x=-2 Now solve for x in each case


So our answer is
x=-4 or x=-2


Notice if we graph y=x%5E2%2B6x%2B8 we can see that the roots are x=-4 and x=-2 . So this visually verifies our answer.


+graph%28500%2C500%2C-10%2C10%2C-10%2C10%2C0%2C+x%5E2%2B6x%2B8%29+