Question

(1+2 n)^3 pls solve ill mark brainliest ​

Answer 1

Answer:

$(1 + 2n) {}^{3} \\ = 1 {}^{3} + (2n) {}^{3} + 3 \times 1 \times 2n(1 + 2n) \\ = 1 + 8n {}^{3} + 6n(1 + 2n) \\ = 1 + 8n {}^{3} + 6n \times 1 + 6n \times 2n \\ = 1 + 8n {}^{3} + 6n + 12n {}^{2} \\ = 8n {}^{3} + 12n {}^{2} + 6n + 1$

Answer 2

Answer:

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