Question

which of the following is a quadratic equation Option A. 5/x-3=X2 Option B.x(x+2)=x option C.n-1=2n option D.1/X2 (x+2)=X​

Answer 1

Step-by-step explanation:

degree of an equation is 2 then it is

called quadratic equation

A ) 5/( x - 3 ) = x²

5 = x²( x - 3 )

5 = x³ - 3x

degree = 3

2) x( x + 5 ) = 2

x² + 5x = 2

degree = 2

Quadratic equation.

C ) n - 1 = 2n

-1 = n

degree = 1

Linear equation .

D ) 1/x² ( x + 2 ) = x

1/( x³ + 2x² ) = x

1 = x( x³ + 2x² )

1 = x⁴ + 2x³

degree = 4

I hope this helps you.

: )

options B