Question

Simplify 7.5y⁴ • 9y²

Answer 1

67.5y⁶.

Step-by-step explanation:

Given the expression:

`7.5y^4*9y^2`

First, reorder the terms:

`=7.5*9* y^4* y^2`

Next, combine like terms:

`\begin{gathered} =67.5* y^4* y^2 \\ =67.5* y^(4+2) \\ =67.5* y^6 \\ =67.5y^6 \end{gathered}`

The simplified form is 67.5y⁶.