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228tommy228
@228tommy228
August 2022
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5x²-4x-12=0 пж полное решение
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Vеstа
5x²-4x-12=0
D=
b² - 4ac = (-4)²
- 4·5*(-12) = 16 + 240 = 256
x
₁=(4-√256)/2*5=4-16/10=--12/10=1,2
x²=(4+√256)/2*5=4+16/10=20/10=2
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Answers & Comments
D=b² - 4ac = (-4)² - 4·5*(-12) = 16 + 240 = 256
x₁=(4-√256)/2*5=4-16/10=--12/10=1,2
x²=(4+√256)/2*5=4+16/10=20/10=2