The solution of the equation x\(^2\)- 2x = 8 is
 

  • A x = 0 or 2
  • B x = -2 or 4
  • C x = 2
  • D x = -4
  • E x = 2 or 4
jamb 1979mathematics

The correct answer is B. x = -2 or 4

The given equation is \(x^2 - 2x = 8\).

We can rearrange this equation to the standard quadratic form \(ax^2 + bx + c = 0\):

\(x^2 - 2x - 8 = 0\)

This equation can be factored to:

(x - 4)(x + 2) = 0

Setting each factor equal to zero gives the solutions x = 4 and x = -2.

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