# Ejercicio 01.7

## a)

2*(1+sqrt(8));

expand(%);

(1-sqrt(8))*(1+sqrt(8));

expand(%);

(4*sqrt(2)+2)/(-7);

## b)

(2+sqrt(3))*(2+sqrt(3));

expand(%);

(2-sqrt(3))*(2+sqrt(3));

expand(%);

4*sqrt(3)+7;

## c)

5*(sqrt(8)+sqrt(5));

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(sqrt(8)-sqrt(5))*(sqrt(8)+sqrt(5));

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(5*sqrt(5)+10*sqrt(2))/(3);

## d)

(4+2*sqrt(3))*(6+sqrt(5));

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(6-sqrt(5))*(6+sqrt(5));

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(2*sqrt(3)*sqrt(5)+4*sqrt(5)+2*(2*3^(3/2))+24)/(31);