Question

if x+1/x=7 find the value of x^2+1/x^2​

Answer 1

Answer:47

Step-by-step explanation:

x+1/x=7

Squaring both sides

(x+1/x)^2=7^2

x^2+1/x^2+2(x)(1/x)=49

x^2+1/x^2+2=49

x^2+1/x^2=49-2

x^2+1/x^2=47

Answer 2

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