What is (8-2*sqrt(y))^2 ?

The solution to (8-2*sqrt(y))^2 is 64-32sqrt(y)+4y

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simplify (8-2*sqrt(y))^2

simplify

(8 - 2 \cdot y)^{2}

64 - 32 y + 4 y

Solution steps

(8 - 2 y)^{2}

Apply Perfect Square Formula:

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

(8 - 2 y)^{2} = 8^{2} - 2 \cdot 8 \cdot 2 y + (2 y)^{2}

= 8^{2} - 2 \cdot 8 \cdot 2 y + (2 y)^{2}

8^{2} = 64

- 2 \cdot 8 \cdot 2 y = - 32 y

(2 y)^{2} = 4 y

= 64 - 32 y + 4 y

(- 1 + cos (x))^{2}

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\frac{( s + 0.28 ) ( s + 0.5 )}{( s + 0.0201 ) ( s + 5 )}