Question

dadas as funções reais f(x)=-2x+2 e g(x)= x²-2x+3 determine: a) F(1) ; b) G(2) ; c) x tal que f(x)= 0

Answer 1

a)  f(1)= -2*1+2=-2+2=0

b)  g(2)= 2^2 -2*2+3=4-4+3=3

c) -2x+2=0

-2x=-2    *(-1)

x=2/2

x=1