Step-by-step explanation:
Use the Distributive Property:
[tex]-2(5x-1)+7(5x-1)-3(5x+1)[/tex]
[tex]-10x+2+35x-7+15x-3[/tex]
P is correct.
Simplify:
[tex]40x-8[/tex]
T is correct using FOIL or distribution.
Use the FOIL method to simplify:
Use 5x-1 then multiply with -2, 7, and -3.
Note: With -3, -5x + 1 is in the parenthesis, we need to change -3 to 3.
Changing -3 to 3 will equal the distribution of -3(-5x+1).
Our expression: [tex](5x-1)(-2+7+3)[/tex]
S is correct.
