Answer:
2n³ + 4
Explanation:
Take off the parentheses (brackets) because there is nothing to multiply with it :
5 + 5n³ - 1 - 3n³
Now arrange the equation :
5n³ - 3n³ + 5 - 1
Subtract all the same variables :
5n³ - 3n³ = 2n³
5 - 1 = 4
Now arrange the equation again :
2n³ + 4