factorise 25÷4 x^2-y^2÷9
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see answer in above pic ok
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Step-by-step explanation:
a 2 − b 2 = ( a + b ) ( a − b ) where a = 5 2 x and b =y 3 . ( 5 2 x + y 3 ) ( 5 2 x − y 3 )
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