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20-11-2021
Mathematics

contestada

For f(x)=3x2 – x+5, 2f(–3) – f(4)=

Respuesta :

20-11-2021

Answer:

Step-by-step explanation

f(–3) =3×2-(-3)+5

3×2+3+5

=14

f(4)=3x2 – (4)+5

3×2-4+5

=7

2f(–3) – f(4)=

2(14) – f(7)=

28-7

=21

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