Răspuns:
ex 1 : a)
[tex](x + \sqrt{2} - \sqrt{8} ) \times (x + \sqrt{2} + \sqrt{8} ) = > (x - \sqrt{2} ) \times (x + 3 \sqrt{2} )[/tex]
b)
[tex]( \sqrt{2} x - 1 - \sqrt{32} x) \times ( \sqrt{2} x - 1 + \sqrt{32} x) = > ( \sqrt{2} x - 1 - 4 \sqrt{2} x) \times ( \sqrt{2} x - 1 + 4 \sqrt{2} x) = > ( - \sqrt{2} x - 1) \times (5 \sqrt{2} x - 1)[/tex]
c)
[tex]2 \times 2(x - \sqrt{3} ) \times (x + 2 \sqrt{3} ) = > 4(x - \sqrt{3} ) \times (x \times + 2 \sqrt{3} )[/tex]
