Final answer:
The expression for the surface area of the rectangular prism can be simplified to 192x² - 96x.
Step-by-step explanation:
The expression for the surface area of the rectangular prism can be simplified as follows:
2[(4x)(4x)] + 4[(10x - 6)(4x)]
First, multiply the values within the square brackets:
2(16x²) + 4[(40x² - 24x)]
Next, simplify the expression by multiplying the values outside the square brackets:
32x² + 160x² - 96x
Finally, combine like terms to simplify further:
192x² - 96x
So, the simplified expression for the surface area of the rectangular prism is 192x² - 96x.