Each truck weighs five tons.
1st truck: n
2nd truck: n + 2
3rd truck: n + 4
4th truck: n + 6
n + n + 2 + n + 4 + n + 6 = 32
4n + 12 = 32
- 12 - 12
--------------------
4n = 20
---- ------
4 4
n = 5
Answer:
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Step-by-step explanation:
Using the formula a^2-b^2=(a-b)(a+b)
you get
(1/2x^2-2) (1/2x^2+2)
