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Artist 52 [7]
3 years ago
9

A tutor invited 3 students to a study group. Those 3 students each invited 3 students to the study group. Then those additional

students each invited 3 students to the study group. How many total students are invited to the study group?
Mathematics
1 answer:
Bess [88]3 years ago
5 0

Answer:21 students

Step-by-step explanation: 3x7=21 students.

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irina1246 [14]
Hello.

(x + 2y) • (x - 13y) Step by step solution :<span>Step  1  :</span><span>Equation at the end of step  1  :</span><span> ((x2) - 11xy) - (2•13y2) </span><span>Step  2  :</span>Trying to factor a multi variable polynomial :

<span> 2.1 </span>   Factoring   <span> x2 - 11xy - 26y2</span> 

Try to factor this multi-variable trinomial using trial and error<span> 

 </span>Found a factorization  :  (x + 2y)•(x - 13y)

Final result : (x + 2y) • (x - 13y)
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