Factorisation and Algebraic Fractions

1. Expand (x - 1)(x + 3)

1. -5(4 - 3p) =

Simplify (r -1)(r + 1)- r(r + 1)

Which of the following is not the common factor of 3p and 9pq

Determine the highest common factor of 6h² and 9hk.

Factorise 6x²+ x - 2.

3pr - 4ps + 12qs - 9qr

Kenny bought x cans of drinks at RM1.40 each and y packets of sweets at RM5.30 each. State an algebraic expression for the total purchase that Kenny needs to pay.

Tan builds a mini garden with square-shaped in his home yard. Given the area of the mini garden is (x² + 6x + 9)m². Find the side length of the mini garden in terms of x.

Chong intends to install the turf in part of his home yard region with area of (135x² - 240)m². If the turf that bought by Chong is rectangular shape. Calculate the perimeter of one turf.