Expand $(3x^2 + y)^5$

# Expand $(3x^2 + y)^5$

J
240 points

I need to find a fast way to expand $(3x^2 + y)^5$

Expand $(3x jeffp ### 1 Answer Answered by 3 years ago 8.7k points Use the binomial expansion, $$(3x^2+y)^5 = \sum_{k=0}^5 \begin{pmatrix} 5 \\ k \end{pmatrix} (3x^2)^k y^{5-k}$$ ### Your Answer Surround your text in *italics* or **bold**, to write a math equation use, for example, $x^2+2x+1=0\$ or $$\beta^2-1=0$$

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