Question

Simplify 4n5 + 3.5n5 + (-2.1n5).

4.4 n5
5.4 n5
20 n5
6.4 n5

Answer 1

5.4n to the fifth power

Explanation:

Answer 2

`4 {n}^(5) + 3.5 {n}^(5) + ( - 2.1 {n}^(5) )`

first create a bracket:

`= ( {4n}^(5) + 3.5 {n}^(5) ) + ( - 2.1 {n}^(5) )`

then solve the first bracket:

`= {7.5 {n}^(5) } + ( - 2.1 {n}^(5) )`

then open the remaining bracket:

`= {7.5n}^(5) - {2.1n}^(5)`

carryout the subtraction operation:

`= (7.5 - 2.1) {n}^(5) \\ { \boxed{ = {5.4n}^(5) }}`