Evaluate $(1002)^{2}$.

Give possible expressions for the length and breadth of a rectangle whose area is given as $(20 x^{2}+22 x+6)$ square units,where $(x > 0)$.

Which of the following expressions is a polynomial? State the reason. If an expression is a polynomial,state whether it is a polynomial in one variable or not: $x^{2}+y^{2}+z^{2}+2xy+2yz+2zx$

Factorise $8x^{3} + 125y^{3} + 343 - 210xy$.

Expand the following:
$(4a - b + 2c)^2$

Classify the following as linear,quadratic,or cubic polynomial: $x^{2}-9x+14$.