Question

x = √7+4√3, then x+1/x
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Answer 1

Answer:

x=7+43–√−−−−−−−√x=(2)2+2(3–√)(2)+(3–√)2−−−−−−−−−−−−−−−−−−−√x=(2+3–√)2−−−−−−−−√x=2+3–√(x+1x)=2+3–√+12+3–√⋅2−3–√2−3–√(x+1x)=2+3–√+2−3–√4−3(x+1x)=4