Respuesta :

3 x (500 + 80 + 4)

should be your answer

expanded form is stretching out a number so that you can see each place value by itself (as seen in 500, 80, and 4)

so for example 384,550 expanded form will be 300,000 + 80,000 + 4,000 + 500 + 50

hope this helps
Using expanded notation for 584 it would be 500 + 80 + 4. Then take 500 x 3 = 1500; then 80 x 3 = 240; and 4 x 3 = 12. Then add 1500 + 240 + 12 = 1752.
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