Answer:
The correct answers are A and B
Answer:
uno=dose
Step-by-step explanation:
Answer:
Hence the expression 
Step-by-step explanation:
Explanation
- The given expression is (10a-b)(3 a-4).
- We have to multiply the given expression.
- Multiply the (10a-b) by -4, multiply the (10 a-b) by 3a then add like terms.

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Answer:
Regular Polygons are never concave by definition.
Step-by-step explanation: