Question

Find the discriminant for the following quadratic equation and use it to determine the number of roots or real solutions it has.
x^2 - 8x +16 = 0

Help explain this to me please!!

Answer 1

\(\bf {\color{blue}{ 1}}x^2{\color{red}{ -8}}x{\color{green}{ +16}}\qquad discriminant\implies {\color{red}{ b}}^2 -4{\color{blue}{ a}}{\color{green}{ c}}\)

http://www.regentsprep.org/regents/math/algtrig/ate3/discriminant.htm <---- see how many solutions