The three equivalent expressions of the final position are:
-(5)(3) - (2)(4), -(5)(3) + (-2)(4) and -(5)(3) + (2)(-4)
From the question,
So, the final position of the submarine is:
Final = -(5)(3) - (2)(4)
The minus "-" sign implies that the submarine moves downwards i.e. it sinks
The equivalent expressions of the final position are:
-(5)(3) - (2)(4), -(5)(3) + (-2)(4) and -(5)(3) + (2)(-4)
Read more about equivalent expressions at:
https://brainly.com/question/2972832