gardenlilly08 gardenlilly08

08-01-2024
Mathematics

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is x^3+4x^2-9 divisible by (x+3)

Respuesta :

djp6182583 djp6182583

08-01-2024

Answer:

See below.

Step-by-step explanation:

By the Factor theorem f(x) is divisible by x+3 if f(-3) = 0.

Testing:

(-3)^3 + 4(-3)^2 - 9

= -27+ 36 - 9

= 36 - 36

= 0.

So it is divisible by x+3.

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