Question

quais sao as raizes da funçao f(x)=x(ao quadrado)-4x+3

Answer 1

$f(x) = x^{2} -4x+3\\DELTA=b^{2} -4.a.c\\DELTA=16-4.1.3\\DELTA=4\\\\x=\frac{-b+/-\sqrt{DELTA} }{2a} \\x1=\frac{4-2}{2}\\x1=1\\x2=\frac{4+2}{2}\\x2=3$