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Kvadrat tenglamalar
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4x²+8x+n=0; n ning qanday qiymatlarida ushbu kvadrat tenglama haqiqiy ildizlarga ega emas
n>4
x²+4x-5=0 tenglamani yeching
-5 va 1
x²-5x+6=0 tenglamaning ildizlarini toping?
3 va 2
x²-2x+5=0 tenglamani yeching
Tenglama haqiqiy ildizlarga ega emas
x²+2x+6=0 tenglama nechta yechimga ega?
Haqiqiy ildizlarga ega emas
x²+6x+9=0 kvadrat tenglama nechta ildizga ega?
1 ta
x²-4x+4=0 kvadrat tenglama nechta ildizga ega?
1 ta
x²-6x+3=0 kvadrat tenglama nechta ildizga ega?
2 ta
x²+4x-5=0 kvadrat tenglama nechta ildizga ega?
2 ta
x²+4x+5=0 diskriminantni toping
-4
x²-2x+1=0 diskriminantni toping
0
x²+4x-5=0 diskriminantni toping
36
Kvadrat tenglama qachon haqiqiy ildizlarga ega emas
Agar D<0 bo'lsa
Kvadrat tenglama qachon bitta ildizga ega?
D=0 bo'lsa
Kvadrat tenglama qachon 2 ta ildizga ega
Agar D>0 bo'lsa
ax²+bx+c=0 uchun diskriminantni topish formulasini ayting
D=b²-4ac
ax²+bx+c=0 ko'rinishidagi tenglamalarga qanaqa turdagi tenglamalar deyiladi?
Kvadrat tenglamalar
x²-2x-1=0 ozod had nechaga teng?
-1
2x²+8x+7=0 kvadrat tenglamaning ozod hadi nimaga teng?
7
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