## 26 January 2016

### FACTORS AND PRIME FACTORS

(1)  List all the factors and prime factors of each of the following numbers.

 Number Factor Prime Factor 12 15 32 48 52 68

(2)  Circle the prime factors of each of the following numbers from the list of factors given.

 Number Factor 20 1, 2, 4, 5, 20 42 1, 2, 3, 6, 7, 14, 21, 42 28 1, 2, 4, 7, 14, 28 36 1, 2, 3, 4, 6, 9, 12, 18, 36 110 1, 2, 5, 10, 11, 22, 55, 110

## 12 January 2016

### PROBLEM SOLVING OF WHOLE NUMBERS

Example 1 :
In a Mathematics quiz, 4 marks were given for every correct answer and 2 marks were deducted for every wrong answer.  Suraya answer 30 questions and 24 of them are correct. She answered the rest wrongly. How many marks did she get?

Solution:
Correct = 24 x 4 = 96
Wrong = 6 x 2 = 12

Suraya's marks = 96 - 12 = 84

## 08 April 2015

### PEMFAKTORAN JENIS 4 : ab + ac + bd + cd

NOTA
ab + ac + bd + cd
= a(b + c) + d(b + c)
= (b + c)(a + d)

Contoh 1: Faktorkan selengkapnya ungkapan algebra berikut
xy + 2x + 3y +6

Penyelesaian

x+ 2x + 3+3x2
= x(y + 2) + 3(y + 2)
= (y + 2)(x + 3)

Contoh 2Faktorkan selengkapnya ungkapan algebra berikut
2mn - 4mp - 3qn + 6qp

Penyelesaian

2mn - 4mp - 3qn + 6qp
= 2m(n - 2p) -3q(n - 2p)
= (n - 2p)(2m - 3q)