Bigarren mailako ekuazioak ebazteko formula orokorra:
Adibide bat:
Azalpenak:
tutomate rena da.
Gelan 94. orrialdeko 1. ariketa egin dugu:
$\displaystyle x^2 - 7x + 6 = 0$
$\displaystyle x^2 - 20x + 100 = 0$
$\displaystyle 3x^2 +5x +11 = 0$
$\displaystyle 6x^2 +5x + 1 = 0$
$\displaystyle 10x^2 - 3x -1 = 0$
$\displaystyle 2x^2 - 8x + 8 = 0$
Ariketa gehiago, gelan egindakoak:
$\displaystyle x^2 - 11x + 10 = 0$
$\displaystyle x^2 - 133x + 4212 = 0$
$\displaystyle x^2 + 4x -192 = 0$
$\displaystyle 12x^2 +8x + 1 = 0$
$\displaystyle 3x^2 - 2x = 0$
$\displaystyle 12x^2 - 8x = 0$
$\displaystyle x^2 -16 = 0$
$\displaystyle 4x^2 - 4 = 0$
Ariketa gehiago, gelan egindakoak:
$\displaystyle x^2 - 11x + 10 = 0$
$\displaystyle x^2 - 133x + 4212 = 0$
$\displaystyle x^2 + 4x -192 = 0$
$\displaystyle 12x^2 +8x + 1 = 0$
$\displaystyle 3x^2 - 2x = 0$
$\displaystyle 12x^2 - 8x = 0$
$\displaystyle x^2 -16 = 0$
$\displaystyle 4x^2 - 4 = 0$
$\displaystyle x^2 + x + 6 = 0$
