What is (7-sqrt(5))(7-sqrt(5)) ?

The solution to (7-sqrt(5))(7-sqrt(5)) is 54-14sqrt(5)

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simplify (7-sqrt(5))(7-sqrt(5))

simplify

(7 - 5) (7 - 5)

54 - 145

Decimal Notation

22.69504 \dots

Solution steps

(7 - 5) (7 - 5)

Apply exponent rule:

aa = a^{2}

(7 - 5) (7 - 5) = (7 - 5)^{2}

= (7 - 5)^{2}

Apply Perfect Square Formula:

(a - b)^{2} = a^{2} - 2 ab + b^{2}

(7 - 5)^{2} = 7^{2} - 2 \cdot 75 + (5)^{2}

= 7^{2} - 2 \cdot 75 + (5)^{2}

7^{2} - 2 \cdot 75 + (5)^{2} = 54 - 145

= 54 - 145

- 100 e^{- \frac{6}{10}}

x^{2} (r (r - 1) x^{r - 2})

(csc (t) - cot (t))^{4} (csc (t) + cot (t))^{4}

k (k + 1)

e^{- l n (p)}

What is (7-sqrt(5))(7-sqrt(5)) ?
The solution to (7-sqrt(5))(7-sqrt(5)) is 54-14sqrt(5)