Q. 3 I3.8( 13 Votes )

Write the followi

Answer :

The given equation is:

x2 + x – 12 = 0


x2 + 4x – 3x – 12 = 0


x(x + 4) – 3(x + 4) = 0


(x – 3)(x + 4) = 0


x – 3 = 0 or x + 4 = 0


x = 3 or x = -4


therefore, the solution set of the given equation can be written in roaster form as {3, -4}


So, J = {3, -4}


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