Question

9. Luego de resolver:
25X-1 = (175) 1-2x
Indique el valor de 4x​

Answer 1

Respuesta:

${25}^{x - 1} = ( \frac{1}{125} ){}^{1 - 2x} \\</p><p> log(a^b) = b log(a) \\ </p><p>2 log(5) (x - 1) = 3 log(5) (2 x - 1)\\</p><p>2(x-1)=3(2x-1)\\</p><p>2x-2=6x-3\\</p><p>2x-6x=-3+2\\</p><p>-4x=-1\\</p><p>x=1/4</p><p>$

4x= 4(1/4)=4/4= 1

solución es 1