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anonymous
 one year ago
Given that x, 4, x+6 are consecutive terms of a geometric series, find:
(a) the possible values of x
So I got x=2 but part from trying every number to see I don't know of a method to find the possible values. I don't know how many values they want so if there is a method that shows all the possible values that would be better.
anonymous
 one year ago
Given that x, 4, x+6 are consecutive terms of a geometric series, find: (a) the possible values of x So I got x=2 but part from trying every number to see I don't know of a method to find the possible values. I don't know how many values they want so if there is a method that shows all the possible values that would be better.

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welshfella
 one year ago
Best ResponseYou've already chosen the best response.2Geometric series so common ratio = second term / first = third / second so 4 / x = (x + 6) / 4 solve for x

welshfella
 one year ago
Best ResponseYou've already chosen the best response.2that rearranges to the quadrataic equation x^2 + 6x  16 = 0

welshfella
 one year ago
Best ResponseYou've already chosen the best response.2can you solve that?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.2x = 2 is one of the possible values

welshfella
 one year ago
Best ResponseYou've already chosen the best response.2you need to factor x^2 + 6x  16 you want 2 numbers whose product is 16 and whose sum = + 6

welshfella
 one year ago
Best ResponseYou've already chosen the best response.2have you learned how to solve these type of equations?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Yes I have done quadratics before. I will try that now quickly

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I got the right thing! Thank you very much!
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