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Exponential equation help?
My son is baffled, and I am too. Appreciate some help on how to attack this problem. No need to work it out, but a description of how to go about it would be great.
The boy said he stared at it for a while and decided to try 1 as a solution, which works.
Solve for x: 2^2x - 9(2^x) + 14 = 0
1 AnswerMathematics1 decade agoCombinations -- 12 indistinguishable balls, each of 3 boxes to have at least 1 ball. How many combinations?
The answer given is 11 C 2, or 55. Can someone show me why that's the case?
4 AnswersMathematics1 decade ago