Factorize expressions: x2 – y2 + 6y – 9
We have,
x2 – y2 + 6y – 9
x2 + 6y – (y2 – 6y + 9)
x2 – (y – 3)2
By using the formula (a2 – b2) = (a+b) (a-b)
(x + y – 3) (x – y + 3)
Divide as directed (x4 – 81) ÷ (x3 + 3x2 + 9x + 27)
Divide as directed (3x3 – 6x2 – 24x) ÷ (x – 4) (x + 2)
Divide as directed 15(y + 3)(y2 – 16) ÷ 5(y2 – y – 12)
Factorise x2 + 2xy – 99y2
Factorise 6x2 – 5xy – 6y2