5^(2x) + 5^(3x-1) = 150

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- Jul 16th 2010, 09:54 PMZharif93logarithm
5^(2x) + 5^(3x-1) = 150

- Jul 16th 2010, 10:00 PMProve It
Are you sure this isn't supposed to be

? - Jul 16th 2010, 10:03 PMZharif93
im not sure , my friend ask me this question

- Jul 17th 2010, 04:23 AMHallsofIvy
and

Your equation is . If you let you have or the cubic polynomial . Any**rational**solution for y must be a factor of 750. I suggest you whack your friend about the ears!