Mister Exam
x^2log625(2-x)≥log5(x^2-4x+4) inequation
The solution
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/ 2 \
2 log(2 - x) log\x - 4*x + 4/
x *---------- >= -----------------
log(625) log(5)
$$x^{2} \frac{\log{\left(2 - x \right)}}{\log{\left(625 \right)}} \geq \frac{\log{\left(\left(x^{2} - 4 x\right) + 4 \right)}}{\log{\left(5 \right)}}$$
x^2*(log(2 - x)/log(625)) >= log(x^2 - 4*x + 4)/log(5)
Solving inequality on a graph