Answer:
the second one
Step-by-step explanation:
cant be negative cuz if its negative the first line doesnt apply.
Answer:
7x+5=7x+5 they are equal same lines
Step-by-step explanation:
Answer:
- 16√3
- -45+15i
- √255
- 6√2 +3√10
Step-by-step explanation:
1)

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2)

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3)

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4)

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The applicable identities are ...

21 goes into 76 3 times with a remainder of 8 left
It is b because it has one of the most simple method.