Question

Can anyone help me with this? I'm checking my son's homework

Answer 1

You have to multiply

`(-2x^3y^2z)(5x^6yz)`

To solve this multiplication you can decompose the terms and multiply each like term separately.

So that

`\begin{gathered} (-2)\cdot5=-10 \\ x^3\cdot x^6=x^9 \\ y^2\cdot y=y^3 \\ z\cdot z=z^2 \end{gathered}`

Once you solved each multiplication you can multiply all terms together

`(-10)(x^9)(y^3)(z^2)=-10x^9y^3z^2`

The correct answer is D.