You have to follow PEDMAS, everytime I change the operation I will say what I change it to.
First is parenthesis or brackets
In the brackets we do the exponent first:
4^2+(4-3)*2+2^3*5 (btw I don't like 'x' so I use '*')
Now we do subtraction (inside the brackets still:
4^2+(1)*2+2^3*5
It doesn't need brackets anymore so it is:
4^2+1*2+2^3*5
Now we do the exponents:
16+1*2+8*5
Now we do multiplication:
16+2+40
And finally we do addition:
18+40
58
Hope this helps :)
