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4 years ago

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

Mathematics

1 answer:

Pani-rosa [81]4 years ago

7 0

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 = ------------------

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

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