Question

Dado f( X )= 3x² - 5x + 1= 0, calcule:

a)f( 1 )=

b)f( 0 )=

c)f( -5 )=​

Answer 1

Resposta:

a)f(1)=3×1^2-5×1=0

f(1)=3-5-0

f(1)= -2

b)f(0)=3×0^2-5×0=0

f(0)=0-0=0

c)f(-5)=3×(-5)^2-5×(-5)=0

f(-5)=3×25+25=0

f(-5)=75+25-0

f(-5)=100

^=significa elevado