Question

Use the discriminant to describe the roots of each equation. Then select the best description.

x^2 - 4x + 4 = 0


double root
real and rational root
real and irrational root
imaginary root

Answer 1

Hello My Friend! The correct answer its double root.

Explanation:

In this equation, if we applie the a, b and c coefficients (a=1, b=4, c=4) ind the Bhaskara, the final result will be 4 for both cases. x'=4 and x''=4. It happens because the number of theta is equal to 0. So, both roots will be the same number.