Respuesta :

blackshades

15a - 20ab

Here, '5' & 'a' are the common factors. So factor them out.

=》15a - 20ab

=》5a (3 - 4b)

Myra incorrectly put 'a' inside the bracket which is wrong because 'a' is a common factor too along with 5.

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RainbowSalt2222 ☔

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