Answer:
67.5y⁶.
Explanation:
Given the expression:
[tex]7.5y^4\times9y^2[/tex]First, reorder the terms:
[tex]=7.5\times9\times y^4\times y^2[/tex]Next, combine like terms:
[tex]\begin{gathered} =67.5\times y^4\times y^2 \\ =67.5\times y^{4+2} \\ =67.5\times y^6 \\ =67.5y^6 \end{gathered}[/tex]The simplified form is 67.5y⁶.
