SOLUTION: Solve by factoring and using the principle of zero products. 18d^2 + 30d + 12 = 0

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Question 156948: Solve by factoring and using the principle of zero products.
18d^2 + 30d + 12 = 0
Found 2 solutions by jim_thompson5910, Earlsdon:
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

18d%5E2%2B30d%2B12=0 Start with the given equation


6%28d%2B1%29%283d%2B2%29=0 Factor the left side



Now set each factor equal to zero:


d%2B1=0 or 3d%2B2=0


d=-1 or d=-2%2F3 Now solve for d in each case


So our answers are


d=-1 or d=-2%2F3

Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Solve for d:
18d%5E2%2B30d%2B12+=+0 Factor.
%283d%2B3%29%286d%2B4%29+=+0 Apply the zero product rule: If a*b = 0, then either a = 0, or b = o, or both.
3d%2B3+=+0 or 6d%2B4+=+0
If 3d%2B3+=+0 then 3d+=+-3 and d+=+-1
If 6d%2B4+=+0 then 6d+=+-4 and d+=+-2%2F3