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16 December, 20:03

Give that (x+2) us a factor is 2x^2+kx-10, which of the following is the value of k?

A - - 3

B - 3

C - 1

D - - 1

+3
Answers (1)
  1. 16 December, 20:14
    0
    2 * - 10 = - 20

    so the factors taken are 2 and - 5

    k = - 5 + 2*2 = - 1

    Its D
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