Question

URGENTE!!! Dada a função quadrática f(x) = -2x^{2}+ 8x − 8 Determine: f(3)−f(−2) / f(1)

Answer 1

Resposta / Explicação passo a passo:

...... Dados Informativos: f ( x ) = -2x² +  8x  − 8

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.... f ( x ) = -2x² +  8x  − 8

a) f ( 3 ) = -2 ( 3 )² +  8 ( 3 )  − 8

f ( 3 ) = -2 . 9 +  24  − 8

f ( 3 ) =  -18 + 24 - 8

f ( 3 ) = -2 ( * )

b) f ( -2 ) = -2 ( -2 )² +  8 ( -2 )  − 8

f ( -2 ) = -2 . 4 - 16 - 8

f ( -2 ) =  -8 - 16 - 8

f ( -2 ) =   -32  ( ** )

c) f ( 1 ) = -2 ( 1 )² +  8 ( 1 )  − 8

f ( 1 ) = -2 . 1 + 8 - 8

f ( 1 ) = -2 + 8 - 8

f ( 1 ) = -2 ( *** )

( ...... ) Conclusão Final 1:  f ( 3 ) − f ( −2 )  / f ( 1 )

f ( 3 ) − f ( −2 )  / f ( 1 ) = -2  - 32/-2

f ( 3 ) − f ( −2 )  / f ( 1 ) = -2 + 16

f ( 3 ) − f ( −2 )  / f ( 1 ) =  14 ( Resposta 1 )

OU

( ...... ) Conclusão Final 2:  [ f ( 3 ) − f ( −2 ) ]  / f ( 1 )

[ f ( 3 ) − f ( −2 ) ]  / f ( 1 ) = [ -2 - 32 ] : -2

[ f ( 3 ) − f ( −2 ) ]  / f ( 1 ) = -34 : -2 ............. 17 ( Resposta 2 )

Até . . .