Question

find the square of √5-2

Answer 1

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Answer 2

Concept introduction:

A square is the result of multiplying an integer by itself in mathematics. This procedure is denoted by the word "to square."

Given:

Here the number that is given to us is $\sqrt{5} -2$.

To find:

We have to find the square of the no $\sqrt{5} -2$.

Solution:

According to the problem,

$[\sqrt{5}-2] ^{2} \\=\sqrt{5} ^{2} +2^{2} -2*(2)(\sqrt{5})\\=5+4-4\sqrt{5} \\=9-4\sqrt{5}$

Final answer:

So, the final answer of the question is $9-4\sqrt{5}$.

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