Question

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Answer 1

Respuesta:

-4

Explicación paso a paso:

P(x) = (a-2).x^3 + (2.a-b-3).x + (2c-3b)

Q(x) = -4.x^3 - 5.x + 6

Igualamos:

a - 2 = -4

a = -4 +2

a = -2

2.a-b-3 = -5

2.(-2) - b - 3 = -5

-4 - b - 3 = -5

-4 - 3 + 5 = b

- 2 = b

2.c - 3.b =6

2.c - 3.(-2) = 6

2.c + 6 }= 6

2.c =0

c =0

Hallando: a + b + c = -2 - 2 + 0 = -4