Questions asked by Newt T.

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• What is the answer and steps for this? Given that #(a+b+c)^2=3(a^2+b^2+c^2)# and #a+b+c=12#. find the value of a. Urgent, please show steps. Thanks a lot😊
  
• Physics question?( pls refer to the image)
  
• Physics question?( pls refer to the image) The correct answer should be C.
  
• Prove that #a^3+b^3+c^3-3abc=(a+b+c)(a^2+b^2+c^2-ab-bc-ca)#. How can I solve this without expanding everything? Thx
  
• Factorise? a) x^4+2x^3+3x^2+2x+1
  
• How do I factorise (x+1)(x+2)(x+3)(x+4)-120 ?
  
• Why is a hazard warning label yellow and black?
  
• Why does this happen - when a football is kicked, its volume decreases?