Find m such that (m + \(\sqrt{3}\))(1 - \(\sqrt{3}\))²= 6 - 2\(\sqrt{2}\)

  • A 1
  • B 2
  • C 3
  • D 4

The correct answer is C. 3

(m + \(\sqrt{3}\))(1 - \(\sqrt{3}\))

²(m + \(\sqrt{3}\))(1 - \(\sqrt{3}\))

= 6 - 2\(\sqrt{2}\)

(m + \(\sqrt{3}\))(4 - 2\(\sqrt{3}\)) = 6 - 2\(\sqrt{2}\)

= 6 - 2\(\sqrt{3}\)

4m - 6 + 4 - 2m\(\sqrt{3}\) = 6 - 2\(\sqrt{3}\)

comparing co-efficients,

4m - 6 = 6.......(i)

4 - 2m = -2.......(ii)

in both equations, m = 3

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