Show that (1+2√1)" = 1+8√1+2√4+3√2+√16
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Step 1
First, we need to expand (1+2)^4 using the binomial theorem: (1+2)^4 = 1^4 + 4(1^3)(2) + 6(1^2)(2^2) + 4(1)(2^3) + 2^4 = 1 + 8 + 24 + 32 + 16 Show more…
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