(2) Expand (i) (2x + 3)
![expand \: {(2x + 3)}^{4} expand \: {(2x + 3)}^{4}](https://tex.z-dn.net/?f=expand+%5C%3A++%7B%282x+%2B+3%29%7D%5E%7B4%7D+)
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16 (x)^4+72 (x)^3+216 (x)^2+216 (x)+81
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