What is (sqrt(5)+2)(sqrt(5)+2) ?

The solution to (sqrt(5)+2)(sqrt(5)+2) is 9+4sqrt(5)

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simplify (sqrt(5)+2)(sqrt(5)+2)

simplify

(5 + 2) (5 + 2)

9 + 45

Decimal Notation

17.94427 \dots

Solution steps

(5 + 2) (5 + 2)

Apply exponent rule:

aa = a^{2}

(5 + 2) (5 + 2) = (5 + 2)^{2}

= (5 + 2)^{2}

Apply Perfect Square Formula:

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

(5 + 2)^{2} = (5)^{2} + 25 \cdot 2 + 2^{2}

= (5)^{2} + 25 \cdot 2 + 2^{2}

(5)^{2} + 25 \cdot 2 + 2^{2} = 9 + 45

= 9 + 45

e^{- 0.11}

e^{- 2 t} cos (3 t)

- e^{- (- 1)}

((- 3)^{3})^{3}

What is (sqrt(5)+2)(sqrt(5)+2) ?
The solution to (sqrt(5)+2)(sqrt(5)+2) is 9+4sqrt(5)