Question

Factorise : 12a2 - 75
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Answer 1

Step-by-step explanation:

12a²-75

3(4a²-25)

3((2a)²- (5)²)

3(2a-5)(2a+5)

Answer 2

Step-by-step explanation:

12 a square-75

the common here is 3

3(4 a square-25)

3[(2a) square- 5 square]

3[2a-5][2a+5](using a square -b square=(a+b)(a-b)