Find the discriminant of the quadratic 5x^2 - 2x + 8 - 2x^2 + 6x + 2.
Collect and combine like terms
& arrange them as ax2 + bx + c 5x2 – 2x + 8 – 2x2 + 6x + 2
3x2 + 4x + 10
The discriminant is b2 – 4ac D = (4)2 – (4)(3)(10)
D = 16 – 120
D = – 104
.
+570 
