Hi,
Work:
Equation;
[tex](5x - 30)(5x)[/tex]
1. Remove unnecessary parenthesis.
[tex](5x - 30) \times 5x[/tex]
2. Multiply each term in the parenthesis by 5x. This is called distribution trough parenthesis.
[tex]5x \times 5x - 30 \times 5x[/tex]
3. Calculate the products.
[tex]25 {x}^{2} - 150x \: \: \: \: \: \: \: \: \: \: \: (result)[/tex]
Hope this helps.
If you have any questions about the answer please comment below. Thank you!
r3t40