Respuesta :

Answer:

3x³+6x²-9x

Step-by-step explanation:

3x * x² = 3x³

3x * 2x = 6x

3x * -3 = -9

3x³ + 6x - 9

* means times

im in year 9 / 8th grade so if im wrong sos x

3x^3 + 6x^2 - 9x
Just multiply the 3x by every term in the bracket..?
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