Question

Factorise : 25a²- 4b² + 12bc -9c²
help me plzz fast and also explain​

Answer 1

Answer:

Since both terms are perfect squares, factor using the difference of squares formula,  

a 2 − b2 = ( a + b ) ( a− b )  where  a = 5 a  and  b = 2b − 3 c .

so the answer is

(5 a + 2 b − 3 c ) ( 5 a − 2 b + 3 c )

Step-by-step explanation:

Answer 2

Answer:

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Step-by-step explanation:

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