luisleandro0911 luisleandro0911
  • 06-03-2020
  • Mathematics
contestada

If fx) = 2x2 + 3x and g(x) = x - 2, what is (f+ g)(2)?
ОА. 16
ов. 14
Ос. 12
OD. 10
ОЕ. 8

Respuesta :

Hrishii
Hrishii Hrishii
  • 06-03-2020

Step-by-step explanation:

[tex]f(x) = 2 {x}^{2} + 3x \\ \\ g(x) = x - 2 \\ \\ \therefore \: (f + g)(x) = f(x) + g(x) \\ = 2 {x}^{2} + 3x + x - 2 \\ \therefore \: (f + g)(x) = 2 {x}^{2} + 4x - 2 \\ \\ \therefore \: (f + g)(2) = 2 \times {2}^{2} + 4 \times 2 - 2 \\ = 8 + 8 - 2 \\ \huge \red{ \boxed{\therefore \: (f + g)(2)= 14 }}\\ [/tex]

Hence, option B 14 is the correct answer.

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