Question

x ao quadrado menos 5x+6=0​

Answer 1

x2 - 5x+6=0

D= b2-4.a.c
D= 5^2-4.1.6
D= 25-24
D= 1


X’= -b+raiz de D
X’= -(-5)+1
X’= 6

X’’= -b-raiz de D
X’’= -(-5)-1
X’’= 4