9+25х²-16у²-30х=((5х)²-5*3*2*х+3²)-16у²=
=(5х-3)²-16у²=(5х-3-4у)(5х-3+4у)
Ответ: (5х-3-4у)(5х-3+4у).
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9+25х²-16у²-30х=((5х)²-5*3*2*х+3²)-16у²=
=(5х-3)²-16у²=(5х-3-4у)(5х-3+4у)
Ответ: (5х-3-4у)(5х-3+4у).