Answer:
[tex]30xy-70yz[/tex]Explanation:
Here, we want to simplify the given expression
What we have to do here is to multiply each of the terms inside the bracket by the term outside it
Mathematically, we have that as:
[tex]\begin{gathered} 10y(3x-7z)\text{ } \\ =\text{ \lparen10y}\times3x)-(10y\times7z)\text{ } \\ =\text{ 30xy - 70yz} \end{gathered}[/tex]