Question

Which of the Following is a Quadratic Equation ?
a) x² -3 rootx+2=0
b) x +1/x= x^2
c) x2+1/x= 5
d) 2x2 – 5x = (x - 1)3​

Answer 1

To satisfy weather the equation is quadratic equation or not,it's degree must be two....

Answer 2

Step-by-step explanation:

1) x^-3√x+2=0

=> yes

2)x+1/x=x^

=> x^+x=X3

=> no

3) x^+1/x=5

=> X3+x=5x

=>X3+x-5x=0

=> no

4) 2x^-5x=(x-1)3

=> 2x^-5x=3x-3

=>2x^-5x-3x-3=0

=> 2x^-8x-3=0

=> yes