allyperez15 allyperez15
  • 03-07-2019
  • Mathematics
contestada

-2(10r + 4) + 10(7r + 2)

Respuesta :

gmany
gmany gmany
  • 03-07-2019

Answer:

[tex]\large\boxed{-2(10r+4)+10(7r+2)=50r+12}[/tex]

Step-by-step explanation:

[tex]-2(10r+4)+10(7r+2)\qquad\text{use the distributive property}\ a(b+c)=ab+ac\\\\=(-2)(10r)+(-2)(4)+(10)(7r)+(10)(2)\\\\=-20r-8+70r+20\qquad\text{combine like terms}\\\\=(-20r+70r)+(-8+20)\\\\=50r+12[/tex]

Answer Link
LittleBelle
LittleBelle LittleBelle
  • 03-07-2019
The answer would be 50r+12

-2(10r+4)+10(7r+2)

Remove parentheses

-20r-8+70r+20

Collect like terms

50r+12
Answer Link

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