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lizochkakovale1
@lizochkakovale1
July 2022
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Решите уравнения:
a) 10x^2 - (2x-3)(5x-1)=31
б) (x-2)(x-3) - (x+2)(x-5)=0
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nolik1234
A)10x²-(10x²-2x-15x+3)=31
10x²-10x²+2x+15x-3=31
17x=28
x=1,6
б)x²-3x-2x+6-(x²-5x+2x-10)=0
x²-5x+6-x²+3x+10=0
8x=-16
x=-2
2 votes
Thanks 1
lizochkakovale1
Благодарствую!))
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Answers & Comments
10x²-10x²+2x+15x-3=31
17x=28
x=1,6
б)x²-3x-2x+6-(x²-5x+2x-10)=0
x²-5x+6-x²+3x+10=0
8x=-16
x=-2