i need to solve this equation

81^7-(x/27)^(2*x)=0

Answer 1

[madhan ravi]

syms x

eqn = 81^7-(x/27)^(2*x)==0

x = vpasolve(eqn,x)

[Amjad Green]

thanks i also want to solve this if you can help log4(x^2+7x+12)-log4(x^2+4x)=4

[madhan ravi]

Read the link below:

https://www.mathworks.com/help/symbolic/mupad_ref/log.html

1) Type mupad in command window.

2) On the right bottom corner:

 1) select solve instead of General math.

 2) And click numeric option from it type the red line.

 3) Press enter to run the code.

[madhan ravi]

You can also thank me by giving a vote :)

Answer 2

[Yuvaraj Venkataswamy]

if true
  eqn = 81^7-(x/27)^(2*x) == 0;
  solx = solve(eqn, x)
end

[Amjad Green]

it's giving me a strange answer