Answer:
5740
Step-by-step explanation:
Simplify

Conditions for the existance of


(otherwise, the one of the denominators would be zero.)
____________________
Simplifying:

Multiply both the numerator and the denominator by


Simplify common factors:
Cross multiply...
Thus,
x(x+4)=(x+12)(x+8)
expand...
x^2+4x=x^2+8x+12x+96
Simply both sides of the equation.
x^2+4x=x^2+20x+96
simply further by adding ask like terms...
-16x=96
Solve for x by making x the subject.
therefore
x=-6.
1st number is x
then the other will be 3x
3x+x=24
4x=24
x=6-first number
2nd is 3*6=18
Surface Area= Length × hypotenuse+ length × width+2(1/2 base × height)+Lenght×base
Surface Area= 19×25+19×7+24×7+19×24
SA=1232 m²