Question

What is the value of discriminant of the equation (x+5)²=2(5x +3) ?

Answer 1

$- 124$

x² + 25 + 10x = 10x - 6
x² + 31 = 0
Here, a = 1, b = 0 and c = 31

Therefore, D = b² - 4ac
= 0 - (4) (1) (31)
= -124.