3. Factorise a^2- b^2/
144
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5
Answer:
(a+ b/11) (a- b/11)
Step-by-step explanation:
a² - b²/144
a² - b²/11²
a² - (b/11)²
Using identity a²-b² =(a+b) (a-b)
a² - (b/11)²
(a+ b/11) (a- b/11)
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