# math

what is the solution for the logarithmic equation log2(x2+2x-44)=2?
x2=x squared

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1. 8O how can u do that kind of math?! im good but not that good!!

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posted by penelope
2. Change your equation to an equivalent exponential equation
so
og2(x2+2x-44)=2 is equivalent to

x^2 + 2x - 44 = 2^2
x^2 + 2x - 48 = 0
(x+8)(x-6)=0
x = -8 or x=6

we have to check both of these answers, since the log function has undefined values.
They both work

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posted by Reiny

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