Question

write the discriminant of the quadratic equation( X + 5 )^2 = 2(5x -3)​

Answer 1

use this formula:
b^2-4ac

Answer 2

(X+5)^2=2(5x-3)          This becomes x^2+25+10x = 10x-6                                                             x^2+25+6+10x-10x = 0 ; x^2+31=0; By applying quadratic formula b^2-4ac,                          a=1,b=0,c=31 ; (0)^2- 4(1)(31)= 0-124= -124      Therefore, Discriminant(D) = -124