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9 September, 22:19

Find the number of real number solutions for the equation. x^2+9x+20=0

A.) Can't be determined by graph

B.) 1

C.) 2

D.) 0

+5
Answers (1)
  1. 9 September, 22:23
    0
    X^2+9x+20 = 0

    factorises to (x+5) (x+4) = 0

    so x = - 5 or - 4

    Therefore answer is C.) 2
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