Factorise

$25 x^{2}+25 x+6$

State whether each of the following statements is true or false

$x^{2}-8 x+12=(x-6)(x-2)$

Write the degree of the following polynomials

$5$

Factorise :

$x^{3}-6 x^{2}+11 x-6$

Classify the following as linear, quadratic or cubic polynomial

$x^{3}+5 x^{2}+12$

Expand

$(a-2 b+7 c)^{2}$