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ShogatsekiChan
@ShogatsekiChan
November 2021
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Скоротіть дріб: ( над рискою) х^2 – 12х + 39 ( під рискою) 2х^2 – 11х – 6
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sangers1959
Verified answer
1) x²-12x+36=x²-2*x*6+6²=(x-6)²
2) 2x²-11x-6=0 D=169 √D=13 x₁=6 x₂=-0,5 ⇒ 2x²-11x-6=(x-6)*(x+0,5)
3) (x*-6)²/((x-6)*(x+0,5)
=(x
-6)/(x+0,5)
.
1 votes
Thanks 1
ShogatsekiChan
Огромное спасибо
sangers1959
Хай Вам щастить!
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Answers & Comments
Verified answer
1) x²-12x+36=x²-2*x*6+6²=(x-6)²2) 2x²-11x-6=0 D=169 √D=13 x₁=6 x₂=-0,5 ⇒ 2x²-11x-6=(x-6)*(x+0,5)
3) (x*-6)²/((x-6)*(x+0,5)=(x-6)/(x+0,5).