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guajiro [1.7K]
4 years ago
12

Please help! 20 points

Mathematics
1 answer:
TiliK225 [7]4 years ago
8 0
Hey Cassidy.

Our goal is to combine like-terms.

Here are our terms:
3\sqrt{10} + 7\sqrt{15} - 6\sqrt{10} - 4\sqrt{15}
Let's combine like-terms.
3\sqrt{10} - 6\sqrt{10} = -3\sqrt{10}
7\sqrt{15} - 4\sqrt{15} = 3\sqrt{15}

We are left with:
3\sqrt{15} - 3\sqrt{10}

Your answer is B.)

I hope this helps!
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