Question

4(4m⁵+2m⁵-5m³+ ... +7m⁵) = 60m⁵-20m³​

Answer 1

2
`m^(5)`

Explanation:

4(4m⁵+2m⁵-5m³+ ... +7m⁵) = 60m⁵- 20m³​

We combine similar terms.

4(13
`m^(5)` - 5m³ + x) = 60
`m^(5)` - 20m³

We divided by 4 on both sides.

13
`m^(5)` - 5m³ + x = 15
`m^(5)` - 5m³

Move all terms not containing x to the right side of the equation.

x = 2
`m^(5)`

So, the number fill in the blank is 2
`m^(5)`.