Question

The discriminant of x(x+4) = 12 is
A) 8
B) 16
C) 72
D) 64​

Answer 1

Answer:

D) 64

Step-by-step explanation:

x(x+4) = 12

x^2+4x-12=00

compare with ax^2+bx+c=0

a=1,b=4,c=-12

discriminant= b^2-4ac

=4^2-4 x 1 X (-12)

= 16+48

=64