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2 January, 11:08

The product of the roots of the equation x^2 + x = 2 is:

A. - 2

B. 0

C. 1

+1
Answers (1)
  1. 2 January, 11:25
    0
    Correct answer is A. - 2 why

    x^2+x-2=0 = > x^2+2x-x-2=0 = > x (x+2) - (x+2) = 0 = > (x+2) (x-1) = 0 = >

    x+2=0 or x-1=0 = > x1=-2 and x2=1 = > x1 * x2 = 1 * (-2) = - 2
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