Q1- Fully factorise by removing a common factor.

a. 3x^2 + 5x

b. x(x+2) + (x+2)(x+5)

c. (x-4)^2 -5x +20

Q2- Fully Factorise:

1- 9x^2 – 16

2- 64n^2 – n^4

Q3- If possible, factorise into linear factors

1- (x+3)^2 – 17

2- (x-4)^2 + 9

Q4- Factorise using the difference of two sqaures.

1- (x+3)^2 – 4x^2

2- (1-x)^2 – 16