Question

Use the discriminant to describe the roots of each equation. Then select the best description.

x2 + 9x + 14 = 0

double root
real and rational roots
real and irrational roots
non-real roots

Answer 1

\[\rm Given~~ax^2+bx+C=0\]\[\rm Discriminant= b^2-4ac\]
IF\[\rm b^2-4ac<0~~imaginary ~roots/no-real~roots\]\[\rm b^2-4ac >0 ~~2~real ~roots\] \[\rm b^2-4ac =0~(1~real~root)\]