Describe and correct the error

Question

1. t²-5t=7

   Discriminant=(-5)² - 4(1)(7)

   =25-28

   =-3

   DiscriminantFind is negative, so there are no real solutions.

Answer 1

Discriminant =  (-5)^2 - 4*1(-7)

 

                    = 25+28

 

                    = 53

 

 Discriminant is positive.

We shall have real solutions