Frogg12503 Frogg12503

17-10-2019
Mathematics

contestada

What are the real zeros of x3 + 4x2 − 9x − 36?

A. 1, 2, 3

B. -6, 2, 3

C. –4, –3, 3

D. –1, 2, 18

Respuesta :

surjithayer10otahza surjithayer10otahza

17-10-2019

Answer:

C

Step-by-step explanation:

x^3+4x^2-9x-36=0

or x²(x+4)-9(x+4)=0

or (x+4)(x²-9)=0

or (x+4)(x+3)(x-3)=0

x=-4,-3 or 3

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