Hi there!
Acc'rding to Question :-
-

(3x - 2)
[ - 5 × 3x ] + [ - 5 × - 2 ]
- 15x + 10
EXPLANATION :-
• The Distributive Property of Multiplication :-
When a number is multiplied by the sum of two numbers,
the first number is multiplied to other numbers and add the two products together.
• Remember :-
→ When - ve is multiplied with + ve = - ve
→ When - ve is multiplied with - ve = + ve
→ When + ve is multiplied with + ve = + ve
~ Hope it helps!