Question

25 points!
Just checking is the answer
20y^8y^3

Answer 1

No its the fourth option

Explanation:

Add common expressions

Answer 2

`\boxed{D. 20 {x}^(6) {y}^(4)}`

Explanation:

`(5 {x}^(2) y)(4 {x}^(4) {y}^(3) ) = 20 {x}^(6) {y}^(4)`

Rule need to remember to solve such questions:

`{a}^(x) * {a}^(y) = {a}^(x + y)`