Question

2(5r - 5) + 8(5r - 1)

A) 4 - 311 - 49^2
B) 34r – 6 + 28r^2
C) 26r - 6 + 287^2
D) 50r - 18

Answer 1

The answer is 50r-18

Explanation:

2(5r-5) +8(5r-1)=2 x 5r/2 x -5 + 8x 5r/8 x -1

=10r-10+40r-8

=10r+40r-10-8

=50r-18