SOLUTION: Need help solving this problem. Factor -12x^2-28x+24 and factor q^2+1

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Question 540614: Need help solving this problem. Factor -12x^2-28x+24
and factor q^2+1
Answer by fcabanski(1391) About Me  (Show Source):
You can put this solution on YOUR website!
-12x%5E2-28x%2B24+=+-4%283x%5E2%2B7x-6%29=-4%283x+-+2+%29%28x+%2B+3+%29


q%5E2+%2B+1 can be recognized as the difference of two squares for complex terms.


q%5E2+%2B+1+=+%28q%2B1i%29%28q-1i%29


If you need proof of that, use FOIL to multiply those complex numbers.

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