Question

the quadratic equation whose roots are real and equal is a) 2x2 - 4x + 3 = 0
b) 3x2 - 5x + 2 = 0
c) x² - 4x +4=0
d) x² – 2√x – 6=0​

Answer 1

Step-by-step explanation:

4 - 4x + 3 = 0

7 - 4x = 0

-4x = -7

dividing both side by 4

sol = x = 7/4

Answer 2

Answer:

x² - 4x +4=0

Step-by-step explanation:

If the equation has real and equal roots then d=0.

D=b^2-4ac

-4^2-4.1.4

16-16

=0