Grade 10 to 12 | The Discriminant of Quadratic Equations | (k + 1)x^2 + 12x + (k - 4) = 0

If (k + 1)x^2 + 12x + (k - 4) = 0 has real roots, find the possible values of k.

This is an application of the discriminant (and a little bit of quadratic inequalities in the end).

Copy and understand each line of solution ✍🏽

00:00 The Problem
01:24 Quoting part of the discriminant theorem
02:24 Applying the theorem to the given
04:14 Solving the quadratic inequality by graphing

Видео Grade 10 to 12 | The Discriminant of Quadratic Equations | (k + 1)x^2 + 12x + (k - 4) = 0 канала Math with Mrs Sarah