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zalisa [80]
3 years ago
7

Rebecca solved

Mathematics
1 answer:
Nuetrik [128]3 years ago
8 0

No.

\sqrt{45}=3\sqrt{5}  \\2\sqrt{20} =2\sqrt5}

If you add them up you DO NOT GET 5\sqrt{5}. According to mathematics, it equals to 7\sqrt{5}.

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