Question

sendo f(x)=2x-1 calcule o valor de f(-1) + f(2)

Answer 1

f(-1) + f(2)
= 2(-1) - 1 + 2(2) - 1
= -3 + 3
= 0

Answer 2

Olá!!!

Resolução!!!

f ( x ) = 2x - 1
f ( - 1 ) = 2 • ( - 1 ) - 1
f ( - 1 ) = - 2 - 1
f ( - 1 ) = - 3

f ( x ) = 2x - 1
f ( 2 ) = 2 • ( 2 ) - 1
f ( 2 } = 4 - 1
f ( 2 ) = 3

= f ( - 1 ) + f ( 2 )
= - 3 + 3
= 0

Espero ter ajudado!!!