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diredragon
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Homework Statement
##4^{x} - 7*2^{(x-3)/2} = 2^{-x} ##
Set of real solutions of this equation is found in which following range:
a) (-9, -2)
b) (0, 3)
c) (-3, 0]
d) (3, 7]
Homework Equations
3. The Attempt at a Solution [/B]
I simplified to
##2^{3x} - 7*2^{(3x - 3)/2} = 1##
##2^{3x} - \frac{7*2^{1/2}}{4}2^{3x/2} - 1 = 0 ##
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