Question

how to proof that 5^x times 4 = 25 times 5^x

I think of logarithm but I don't know

Answer 1

\(\large 5^x \times 4 = 25\)

or

\(\large 5^{x \times 4} = 25\)

Answer 2

which one is it /

Answer 3

?

Answer 4

the equation won't show up in my laptop.

Answer 5

http://prntscr.com/34izzp

Answer 6

\[5^{x} \times 4 + 1 = 5^{x} \times 5\] sorry, it suppose to be this.

Answer 7

easy, then

Answer 8

move 5^x * 4 to right hand side :

1 = 5^x*5 - 5^x*4

Answer 9

my gosh, why I didn't think about it. THANK YOU! :D

Answer 10

that gives :

5^0 = 5^x

or x = 0 is the solution for 5^x+1 = 5^x*5

Answer 11

u wlc :)