Class X

Solve each of the following equations by factorisation 2x2 -(1/2)x =0
  1. x =2 Or x = - 4
  2. x = -2 OR x = 5
  3. X= -1/2 OR X= 2
  4. x = 0 Or x = 1/4
Find the value of k for which X = 2 is a root (solution) of equation kx² + 2x -3 = 0.
  1. k= -(1/4)
  2. k= -(2/3)
  3. k= (1/4)
  4. k= -(3/4)
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