CH 12 FACTORISATION
1.[(a+b) square = a square + 2ab + b square]
2.[(a-b) square = a square – 2ab + b square]
3.[ a square – b square = (a+b) (a-b)]
1.[(a+b) square = a square + 2ab + b square]
2.[(a-b) square = a square – 2ab + b square]
3.[ a square – b square = (a+b) (a-b)]