youngdd
youngdd youngdd
  • 20-11-2020
  • Mathematics
contestada

2(5r - 5) + 8(5r - 1)
A) 4 - 311 - 49^2
B) 34r – 6 + 28r^2
C) 26r - 6 + 287^2
D) 50r - 18

25r 5 85r 1 A 4 311 492 B 34r 6 28r2 C 26r 6 2872 D 50r 18 class=

Respuesta :

eriabn
eriabn eriabn
  • 20-11-2020

Answer:

The answer is 50r-18

Step-by-step 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

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