Question

14. Which of the following is quadratic equation?
x² (x + 4) = 6
x(x + 5) = 2
n-1 = 2n
x + 2 = x​

Answer 1

Answer:

(b) x(x + 5) = 2 is the quadratic equation.

Step-by-step explanation:

Because;

A equation having the highest power 2 is called "Quadratic Equation"

And when we will solve:

x(x+5)=2

x^2 + 5x = 2

And here the equation is having the highest power 2 so it is called the quadratic Equation.

Hope it helps !!