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myrzilka [38]
2 years ago
5

1.

Mathematics
2 answers:
vagabundo [1.1K]2 years ago
7 0

\left(\sqrt x - \sqrt{3y} \right) \left(\sqrt x + \sqrt{3y} \right)\\\\=\left(\sqrt x\right)^2 - \left(\sqrt{3y} \right)^2\\\\=x -3y

anzhelika [568]2 years ago
4 0

x - 3y

Solving Stepwise:

\hookrightarrow  \sf \left(\sqrt{x}-\sqrt{3y}\right)\left(\sqrt{x}+\sqrt{3y}\right)

  • \sf apply \ the  \ rule : \bold{\left(a-b\right)\left(a+b\right)=a^2-b^2}

\hookrightarrow  \sf \left(\sqrt{x}\right)^2-\left(\sqrt{3y}\right)^2

\hookrightarrow  \sf x-3y

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