Respuesta :

Simplified Answer: -20r + 40

Step-by-step explanation:

Step 1: Use the distributive property. -10(2r - 4)    

-10 x 2r = -20r and -10 x (-4) = 40

(If you are multiplying two negative integers your answer will always be positive.)

Step 2: Simplified answer: (-20r + 40)