Question

1. Find the value of the discriminant of the equation x2 + 10x - 7 = 0​

Answer 1

:Comparing x2 + 10x - 7 = 0 with ax2 + bx + c = 0 a = 1, b = 10 , c = -7, b2 - 4 ac = 10 2 - 4 x 1 x-7 = 100 + 28 = 128