The number of quadratic expressions with the coefficient drawn from the set{0,1,2,3} is:
(a)21
(b)36
(c)48
(d)64
(a)21
(b)36
(c)48
(d)64
[spoiler]Answer is (C) 48[/spoiler]zareentaj wrote:The number of quadratic expressions with the coefficient drawn from the set{0,1,2,3} is:
(a)21
(b)36
(c)48
(d)64
ax2+bx+c
3*4*4 = 48
3 ways for x2
4 ways for x
4 ways for c
