4.04: Logarithmic, exponential and modulus equations

0606/13/M/J/26 — Question 3 · 12 marks

(a)
Solve \(\log_x9=\log_9(x^4)\).
[4]
(b)
Solve \(2^{2x-2}+3(2^x)-40=0\).
[4]
(c)
Solve \(|x^2+3x-4|=6\).
[4]