Respuesta :

AnimeBrainly
2r(4r + 8) - 5r(6r - 10)

distribute 2r to 4r and 8

2r(4r) = 8r²
2r(8) = 16r

Distribute -5r to both 6r and -10
-5r(6r) = -30r²
-5r(-10) = 50r

8r² - 30r² + 16r + 50r

simplify:
-22r² + 66r 

-22r² + 66r is your answer

hope this helps