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Xupu
@Xupu
March 2022
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Упростите выражение:
a)2c(1+c)-(c-2)(c+4)
б)(y+2)²-2y(y+2)
в)30x+3(x-5)²
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Дарьяна01
А) 2с+2с²-с²-2с+8=с²+8
б) y²+4+4y-2y²-4y=4-y²
в) 30x+3(x²+25-10x)=30x+3x²+75-30x=3(x²+25)
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Answers & Comments
б) y²+4+4y-2y²-4y=4-y²
в) 30x+3(x²+25-10x)=30x+3x²+75-30x=3(x²+25)