Question

А) 5^х-2 = 1 3×4^×=48 3^х =27*3√

Answer 1

$5^{x-2}=1; ,; 5^{x-2}=5^0; ,; x-2=0; ,; x=2\\3cdot 4^{x}=48; ,; 4^{x}=16; ,; 4^{x}=4^2; ,; x=2\\3^{x}=27cdot 3; ,; 3^{x}=3^4; ,; x=4\\oo$