What is (sqrt(x)-2)(sqrt(x)-2) ?

The solution to (sqrt(x)-2)(sqrt(x)-2) is x-4sqrt(x)+4

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simplify (sqrt(x)-2)(sqrt(x)-2)

simplify

(x - 2) (x - 2)

x - 4 x + 4

Solution steps

(x - 2) (x - 2)

Apply exponent rule:

aa = a^{2}

(x - 2) (x - 2) = (x - 2)^{2}

= (x - 2)^{2}

Apply Perfect Square Formula:

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

(x - 2)^{2} = (x)^{2} - 2 x \cdot 2 + 2^{2}

= (x)^{2} - 2 x \cdot 2 + 2^{2}

(x)^{2} = x

- 2 x \cdot 2 = - 4 x

2^{2} = 4

= x - 4 x + 4

\frac{( - 9 ) ^{5}}{9 ^{- 5}} \cdot ((- 9)^{3})^{- 3}

3.2 \cdot 1 0^{- 19} \cdot 400

5 x

(4.21 \cdot 1 0^{- 3}) (56200)

What is (sqrt(x)-2)(sqrt(x)-2) ?
The solution to (sqrt(x)-2)(sqrt(x)-2) is x-4sqrt(x)+4