Question

2) Compare the quadratic equation 3x2 - 5x + 7 = 0 to ax² + bx +c = 0 and
find the value of discriminant and
hence write the nature of the root.​

Answer 1

Answer:

D= -59, roots are complex and unequal

Step-by-step explanation:

Here, a=3,b=-5,c=7

We know, Discriminant=b^2 - 4ac =( -5)^2 - 4x3x7 = 25 - 84 = -59<0

since value of discriminant is less than 0, roots will be complex (in the form:a+ib) and unequal since x={-b plusminus√(b^2 -4ac)} ÷ 2a