SST12
contestada

Decide if the expressions in each pair are equivalent. Explain how you know.
x + x + x + x and 4x


5x and x + 5

Respuesta :

Answer:

20x²+5x+5

Step-by-step explanation:

any more help just ask
The first expression is true because x+x+x+x= 4x. It is like addition but with a variable. The second isn’t true because 5x= x+x+x+x+x whereas x+5 is x plus five. Not 5x. Hope this helps.

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