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svet-max [94.6K]
3 years ago
12

How do i work this out please?

Mathematics
2 answers:
Anna [14]3 years ago
6 0

Answer:

5 \sqrt{5}  - 2 \sqrt{5}  = 3 \sqrt{5}  \\ 8 \sqrt{7} + 3 \sqrt{7}  = 11 \sqrt{7}

hope this helps.

solniwko [45]3 years ago
5 0

Answer:

11 \sqrt{7}

Step-by-step explanation:

8 \sqrt{7}  + 3 \sqrt{7}

\sqrt{7} (8 + 3)

11 \sqrt{7}

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