W 2. Using the binomial theorem expression, what is the expansion of (x + 3y)°? O (z + 3y) = 25 + 15x*y+ 90x³y² + 270x²y³ + 405xy^ + 243y5 |3D O (2 + 3y) = 25 + 2*y+ z*y? + z®y³ + zy* + yf %3D O (* + 3y) = x + 5x*y+10x°y² + 10x²y³ + 5yA + y %3D O (r +3y) = y + 15y*x +90y°æ² + 270y²a + 405yx + 2435 %3D

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A:

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