Three consecutive terms of an arithmetic sequence have a sum of 12 and a product of -80. Find the terms. Hint: Let the terms be x-d, x and x+d. PLEASE HELP !!
You can find the series by using symbolic Algebra. But in this case, it is not necessary because it is very obvious: -2, 4, 10, 16, 22, 28..........etc. The common difference=6, so that:
If you wish to use Algebra to solve it, then see the example here by Mr. CPhill, which is very nicely solved and explained: http://web2.0calc.com/questions/arithmetic-sequence_52513
