1121316
1121316 1121316
  • 04-06-2022
  • Mathematics
contestada

Question in the picture 1-5
how to understand next steps what will be anyone give me explains​

Question in the picture 15how to understand next steps what will be anyone give me explains class=

Respuesta :

reinhard10158
reinhard10158 reinhard10158
  • 04-06-2022

Step-by-step explanation:

remember a few things :

a × -1 = -a

-a × -1 = a

-1 × -1 = 1

1 × a = a

therefore,

-1 × -1 × a = 1 × a = a

and finally

c × (a + b) = c×a + c×b

so, we can say

(1 - 5) = -1 × -1 × (1 - 5) =

= -1 × (-1×1 + -1×-5) = -1 × (-1 + 5) =

= -1 × (5 - 1) = -(5 - 1)

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