Quadratic Equations For Secondary School

BY PN. CHUANG BEE ENG SM TEKNIK BATU PAHAT

EXAMPLE : WRITE THE FOLLOWING QUADRATIC EQUATIONS IN GENERAL FORM

1.

4m(2m − 1) + 14m = 3

Solution :

4m(2m − 1) + 14m = 3

8m − 4m + 14m = 3 2

Solution :

8m − 4m + 14m = 3 2

8m + 10m − 3 = 0 2

IN GENERAL FORM OF ax2 + bx + c = 0

2 m + 5m 2. =2 m +1 2

SOLUTION :

2m + 5m =2 m +1 2

2m + 5m =2 ( m +1) 2

2m + 5m (m + 1) × = 2 × (m + 1) (m + 1) 2

2m + 5m = 2 × (m + 1) 2

2m + 5m = 2 × (m + 1) 2

2m + 5m = 2m + 2 2

SPM / 2004 / K2

2m + 5m = 2m + 2 2

2m + 5m − 2m − 2 = 0 2

2m + 3m − 2 = 0 2

SPM / 2004 / K2

2m + 3m − 2 = 0 2

IN GENERAL FORM OF ax2 + bx + c = 0

✔ K1

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