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400247
@400247
July 2022
2
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Упростите выражение:
1)(m+4)²-4(m+1)²=
2)5(3-5x)²-5(3x-7)(3x+7)=
3)(x-1)²-4(x+1)²-6(x+1)(Х-1)=
ПОМОГИТЕ ПОЖАЛУЙСТА СКОРЕЙ ЗА ЭТОТ ВОПРОС 50 БАЛЛОВ.
заранее СПАСИБО!!!
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humming
1.
2.
3.
3 votes
Thanks 5
400247
СПС
DarkAngel98
1) m²+8m+16-4m²-8m-4=12-3m²=3(4-m²)
2) 5(9-30x+25x²)-5(9x²-49)=45-150x+125x²-45x²+245=290+80x²-150x=10(29-15x+8x²)
3) x²-2x+1-4x²-8x-4-6x²+6=7-9x²-10x
3 votes
Thanks 8
400247
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Answers & Comments
2.
3.
2) 5(9-30x+25x²)-5(9x²-49)=45-150x+125x²-45x²+245=290+80x²-150x=10(29-15x+8x²)
3) x²-2x+1-4x²-8x-4-6x²+6=7-9x²-10x