Answers edited by Harshit Tiwari

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• How do you multiply `(8a^4b^3)/(3c) div (a^7b^2)/(9c)`?
  
• What are the roots of the equation `x^2 - 5x - 36 = 0`?
  
• How do I find the perimeter of a square from the area of the square?
  
• How did life begin according to science?
  
• How do you solve `(x-1)/3 -( x-1) /2 = 6`?
  
• What is relative density??
  
• How do you solve `x^2 - 6x =13` by completing the square?
  
• How do you solve `0= 4x ^ { 2} + 8x + 1`?