Timothy54 Timothy54

18-02-2021
Mathematics

contestada

-3 is a zero for the polynomial:
x^3 + 7x^2 + 16 x + 12
True or False

Respuesta :

jimrgrant1 jimrgrant1

18-02-2021

Answer:

true

Step-by-step explanation:

If x = - 3 is a zero of the polynomial then f(- 3) = 0

f(x) = x³ + 7x² + 16x + 12

= (- 3)³ + 7(- 3)² + 16(- 3) + 12

= - 27 + 63 - 48 + 12

= 0

Since f(- 3) = 0 then x = - 3 is a zero of the polynomial

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