NCERT Solutions for Chapter: Polynomials, Exercise 1: Exercise

If $x+1$ is a factor of the polynomial $2x^2+kx$ then the value of $k$ is

$\left(x+1\right)$ is a factor of the polynomial

One of the factors of $\left(25x^2-1\right)+(1+5x{)}^2$ is

The value of ${249}^2-{248}^2$ is

The factorisation of $4x^2+8x+3$ is

Which of the following is a factor of $(x+y{)}^3-\left(x^3+y^3\right)?$

The coefficient of $x$ in the expansion of $(x+3{)}^3$ is

If $\frac{x}{y}+\frac{y}{x}=-1 (x,y\ne 0)$, the value of $x^3-y^3$ is