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How to Solve this question

How to Solve this question-example-1
User Jannina
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How to Solve this question-example-1
User Cari
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\huge\mathfrak{\underline{Answer:}}


\huge\bf{=14}


\large\bf{\underline{Given :}}

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\large\bf ⟹ x + (1)/(x) = 4


\large\bf{\underline{To\: find:}}

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\large\bf ⟹ {x}^(2) + \frac{1}{ {x}^(2) }


\large\bf{\underline{Using\: identity:}}


\boxed{\large\bf\pink{(a+b)^2 = a^2 + b^2 + 2ab}}

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\large\bf{⟹(x+(1)/(2))^2 = x^2 +((1)/(2)^2) + 2.x.(1)/(x) }

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\large\bf{⟹(4)^2 = x^2 + (1)/(x^2) +2}

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\large\bf{⟹16= x^2 + (1)/(x^2) +2}

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\large\bf{⟹16 - 2= x^2 + (1)/(x^2)}

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\large\bf{⟹x^2 +(1)/(x^2) = 14}

User Curtybear
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