Class X

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)
Solve each of the following equations by factorisation x² - 10x - 24 =0
  1. x = 12 Or x = - 2
  2. x = 8 Or x = - 3
  3. x =(5/2) or x =2
  4. X= -3 OR X = 2
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