Homework Help Forum: 10th Grade Math

Posted by Brian on Monday, May 4, 2009 at 5:53pm.

What is 3X^2-7=11

• 10th Grade Math - drwls, Monday, May 4, 2009 at 5:56pm

  It is an equation. Are you supposed to find the value of X? If so, try starting with 3X^2 -18 = 0 which is equivalent to saying X^2 - 6 = 0 Try factoring it, to get the value of X.

  
  

• 10th Grade Math - Reiny, Monday, May 4, 2009 at 5:56pm

  3X^2-7=11 3x^2 = 18 x^2 = 6 x = ± √6

  
  

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