Question

which expression is equivalent to 8(r - 2 + 4r)? -16 + 8r; -2 + 40r; 40r - 16; 32r + 15

Explanation:

Step1: Distribute 8 to each term

$8(r - 2 + 4r) = 8\times r + 8\times(-2) + 8\times4r$

Step2: Calculate each product

$= 8r - 16 + 32r$

Step3: Combine like terms

$= (8r + 32r) - 16 = 40r - 16$

Answer:

$40r - 16$