madhan15791 Posted October 19, 2012 Share Posted October 19, 2012 Can anyone please tell me the answer to this question? http://i49.tinypic.com/16hw1k.jpg Quote Link to comment Share on other sites More sharing options...
madhan15791 Posted October 20, 2012 Author Share Posted October 20, 2012 any help? Quote Link to comment Share on other sites More sharing options...
apo Posted October 23, 2012 Share Posted October 23, 2012 3*(-1)^2*x^2=9*(-1)^2*x^2 3*x^2=9*x^2 for it to be true x must be 0 the answer is C Quote Link to comment Share on other sites More sharing options...
shivgan3 Posted November 18, 2012 Share Posted November 18, 2012 D is right i think Quote Link to comment Share on other sites More sharing options...
GRE_Kickboxer Posted November 18, 2012 Share Posted November 18, 2012 The answer is C and can be reasoned out by logic. On the left side of the equation, 3 is not squared. On the right side of the equation, -3 is squared. Both sides of the equation square x. This means that the only way the two sides of the equation can be equal is if X is 0 because otherwise it is impossible to equate them. Payman Quote Link to comment Share on other sites More sharing options...
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