Question

the quadratic equation whose roots are real and equal is a2x2-4x+3=0 (b) x2-4x+4 (c) 3x2-5x+2=0 (d) x2-2root2x-6=0 ​

Answer 1

Answer:

option B is the right answer

d =(-4) ^2 - 4(1)(4) = 16-16 = 0 ......... So the roots are real and equal