Answers

2015-01-13T22:13:10+05:30
Lets take a number  x
Square of  x  x^{2}

And 3 times  x = 3 x

So equation is =  x^{2} +  3x 
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in the equation one of the 3 is not there
2015-01-13T22:15:29+05:30
Let the number be ' a'
By Data
if we square it then it is  a^{2}
and 3 times of a becomes 3a
required equation is 
a^{2} +3a
0