Question

Write the quadratic equation whose roots are
1
and
2
, and whose leading coefficient is
3
.
(Use the letter
x
to represent the variable.)

Answer 1

hello : 
 the quadratic equation is: a(x-x1)(x-x2)
x1 and x2 the  roots     
a: is leading coefficient  
in this exercice : 3(x-1)(x-2)