Question

A quadratic equation whose one root is 3 is
x2−5x+6=0
x2−5x−6=0
x2+6x−5=0
x2−6x−5=0

Answer 1

Answer:

1st equation

Step-by-step explanation:

Imagine x=3 and x=2

then,(x-3) (x-2)=0

x2-(3+2)+6=0

x2-5x+6=0

so,1st equation is correct