1.

3x2 - X - 4 find zero​

Answer»

=  >  {3x}^{2}  - x - 4 = 0

=  >  {3x}^{2}   + 3x  - 4x - 4 = 0

=  > 3x(x + 1) - 4(x + 1) = 0

=  > (3x - 4)(x + 1) = 0

=  > x =  \frac{4}{3} or \: x =  - 1



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