lindolfoalvarenga lindolfoalvarenga

18-07-2020
Mathematics

contestada

Solve equation by using the quadratic formula.
15x2 + 13x = 0
13
x = -—,0
15
a.
C.
13
x= —.0
15
b. x=0
d.
13
x=+—
15

Respuesta :

altavistard altavistard

22-07-2020

Answer:

Step-by-step explanation:

Here the coefficients of the x terms in this quadratic are a = 15, b = 13 and c = 0. The discriminant is b^2 - 4ac, or 13^2 - 4(15)(0) = 169 - 60, or 109.

The solutions are:

-13 ± √109

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

30

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