Question

resolva as funcoes da 2 grau
A) f(x)=x2-5x+6
B) f(x)=x2-6x+9
C) f(x)=x2-x+10
D) f(x)=x2-81
E) f(x)=x2+4x
F) f(x)=3x2-9x

Answer 1

A) f(x)=x2-5x+6 ={-1,3}
b )f(x)=x2-6x+9= {-2,3}
C) f(x)=x2-x+10= {-2,3}