Question

Write the product in its simplest form
-3y.3y4
Enter the correct answer.​

Answer 1

`\large\boxed{-9y^5}`

Explanation:

`-3y\cdot3y^4=(-3\cdot3)(y\cdot y^4)\qquad\text{use}\ a^n\cdot a^m=a^(n+m)\\\\=-9y^(1+4)=-9y^5`