jessi2796
jessi2796 jessi2796
  • 14-07-2019
  • Mathematics
contestada

Which are the solutions of x^2 = -13x – 4?

Which are the solutions of x2 13x 4 class=

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altavistard
altavistard altavistard
  • 14-07-2019

Answer:

Step-by-step explanation:

Rewrite this equation in standard quadratic form:  x^2 + 13x + 4 = 0.

Here the coefficients are 1, 13 and 4, so the discriminant is

b^2-4ac, or 169 - 4(1)(4) = 153

Since the discriminant is + there are two real, unequal roots.  They are:

       -13 ± √153

x =  ------------------

            2

x = ----------------

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