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Which choice is equivalent to the expression below? √28+8√7 A.8√35 B.12√7 C.10V7 D.9V35
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5 votes
Which choice is equivalent to the expression below?

√28+8√7

A.8√35
B.12√7
C.10V7
D.9V35

User GregK
by
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2 Answers

3 votes

√(28)+8\sqrt7=\\ 2\sqrt7+8\sqrt7=\\ 10\sqrt7
User Rigel Glen
by
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3 votes

√(28)+8\sqrt7=√(4\cdot7)+8\sqrt7=\sqrt4\cdot\sqrt7+8\sqrt7=2\sqrt7+8\sqrt7=10\sqrt7\\\\Answer:C.
User Jaysen
by
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