Question

Write the discriminant of the quadratic equation (x+5)^2=2(5x-3).

Answer 1

(x+5)^2=2(5x-3)

x^2 +5^2 +2(x)(5) = 10x-6

x^2 + 25 + 10x = 10x-6

x^2 +25-6 = 0

x^2 + 19 =0

x^2 = -19

x = root(-19)

This equation is simply solved there is no need to solve this question by disc.