Question

solve the following equations:

1. 5^(x+1)=25^(1-x)

2. log3(x-1)=log3(2x/(1-x))

Answer 1

for # 1 i got x=1/2 but im not confident

Answer 2

5^(x+1)=5^(2(1-x))
x+1=2-2x
3x=1
x=1/2

Answer 3

2)
(x-1)=2x/(1-x)
(1-x)^2+2x=0
1+x^2=0
so x is imaginory...no real solution..

Answer 4

damn you are fast. its the same as using log right?

Answer 5

of which one are u talking??

Answer 6

the first and the second one the log cancle? right?

Answer 7

oh isnt it suppose to be (1-x)^2-2X=0