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kumpel [21]
3 years ago
12

Please answer I’ll rate brainlyest

Mathematics
1 answer:
harina [27]3 years ago
6 0

Answer:

1330

Step-by-step explanation:

Use to formula...

21!/((21-3)!(3!) = 1330

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<u>Step-by-step explanation:</u>

7(3\sqrt{2x})-3(3\sqrt{16x})-3(3\sqrt{8x})\\\\=21\sqrt{2x}-9\sqrt{16x}-9\sqrt{8x}\\\\=21\sqrt{2x}-9\cdot 4\sqrt x-9\cdot 2\sqrt{2x}\\\\=21\sqrt{2x}-36\sqrt x-18\sqrt{2x}\\\\=(21-18)\sqrt{2x}-36\sqrt x\\\\=3\sqrt{2x}-36\sqrt x

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