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pro100vitali
@pro100vitali
June 2022
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(x+2)^2 + 2x^2 + 8x - 16=0
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miron2077
Verified answer
Исходное не пишу
х²+4х+4+2х²+8х-16=0
3х²+12х-12=0
х²+4х-4=0
D=16+16=32=(4√2)²
х₁=(-4+4√2)/2=2√2-2=2(√2-1)
х₂= (-4-4√2)/2=-2-2√2=-2(√2+1)
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Answers & Comments
Verified answer
Исходное не пишух²+4х+4+2х²+8х-16=0
3х²+12х-12=0
х²+4х-4=0
D=16+16=32=(4√2)²
х₁=(-4+4√2)/2=2√2-2=2(√2-1)
х₂= (-4-4√2)/2=-2-2√2=-2(√2+1)