Final answer:
To find the value of x, we need to solve the equations A-x=32 and D-x=40. Substitute the value of x into the given expression and simplify to solve for x.
Step-by-step explanation:
To find the value of x, we need to solve the equation A-x=32 and D-x=40. We can do this by subtracting x from both sides of the equations:
A-x=32 becomes A=32+x
D-x=40 becomes D=40+x
Now we can substitute the value of x from these equations into the expression (x+15)(4x-20)(x).
For example, if A=32+x, then the expression becomes (32+x+15)(4(32+x)-20)(x).
Simplifying the expression, we can solve for x using the distributive property and combining like terms.