Question

Give the value of the discriminant for the following quadratic equation:
7x2 - 21x = 0
( help me please)

Answer 1

Remember the descriminant is the value of the expression b^2 - 4ac from the quadratic formula. This is based on equations of the form Ax^2 + Bx + C = 0. Do you know what your a, b, and c are?

Answer 2

A = 7
B = -21
C = 0

Plug those values into b^2-4ac and tell me what you get

Answer 3

-21^2 = 441

Answer 4

thank you