Question

The equation $(x-1{)}^3=x(x^2-1)$ is a quadratic equation.

• A. True
• B. False

Answer 1

The correct option is A

True

The given equation is $(x-1{)}^3=x(x^2-1)$

$x^3-3x^2+3x-1=x^3-x$

$-3x^2+3x+x-1=0$

$-3x^2+4x-1=0$

$\therefore$ the given equation is quadratic.