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Огнежар14
@Огнежар14
July 2022
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х+(5х+2)²=25(1+х²)
и
(4х-3)(3+4х)-2х(8х-1)=0
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Innusja13
Verified answer
1.) x+25x²+20x+4=25+25x²
x+25x²+20x+4-25-25x²
21x+4-25=0
21x=21
x=1
2.)12x+16x²-9-12x-16x²+2x=0
-9+2x=0
2x=9
x=9\2
x=4.5
3 votes
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Answers & Comments
Verified answer
1.) x+25x²+20x+4=25+25x²x+25x²+20x+4-25-25x²
21x+4-25=0
21x=21
x=1
2.)12x+16x²-9-12x-16x²+2x=0
-9+2x=0
2x=9
x=9\2
x=4.5