Solve The Equation
We
have:
We need to
find the value of 
First,
let's consider the square of the first equation:
Now, we
can substitute the value of 
from the second
equation into this result:
Next,
let's recall the formula for the sum of cubes:
We already
know the values for 
, and we just found the value for ab. Let's substitute
these values into the formula:
Therefore,
the value of 
Looking
at the options provided, the correct answer is C = 72.
Tags:
Civil