Π ΠΊΠ²Π°Π΄ΡΠ°ΡΠ½ΠΎΠΌ ΡΡΠ°Π²Π½Π΅Π½ΠΈΠΈ ax^2 + bx + c = 0, ΠΏΠΎ ΡΠ΅ΠΎΡΠ΅ΠΌΠ΅ ΠΠΈΠ΅ΡΠ°, ΡΡΠΌΠΌΠ° ΠΊΠΎΡΠ½Π΅ΠΉ ΠΊΠ²Π°Π΄ΡΠ°ΡΠ½ΠΎΠ³ΠΎ ΡΡΠ°Π²Π½Π΅Π½ΠΈΡ ΡΠ°Π²Π½Π° Π²ΡΠΎΡΠΎΠΌΡ ΠΊΠΎΡΡΡΠΈΡΠΈΠ΅Π½ΡΡ Ρ ΠΏΡΠΎΡΠΈΠ²ΠΎΠΏΠΎΠ»ΠΎΠΆΠ½ΡΠΌ Π·Π½Π°ΠΊΠΎΠΌ, Π° ΠΏΡΠΎΠΈΠ·Π²Π΅Π΄Π΅Π½ΠΈΠ΅ ΠΊΠΎΡΠ½Π΅ΠΉ ΠΊΠ²Π°Π΄ΡΠ°ΡΠ½ΠΎΠ³ΠΎ ΡΡΠ°Π²Π½Π΅Π½ΠΈΡ ΡΠ°Π²Π½Π° ΡΠ²ΠΎΠ±ΠΎΠ΄Π½ΠΎΠΌΡ ΡΠ»Π΅Π½Ρ.
Ρ 1 + Ρ 2 = -b; x1 * x2 = c.
1) x^2 - 37x + 27 = 0;
b = -37; c = 27;
x1 + x2 = -(-37) = 37;
x1 * x2 = 27.
2) y^2 - 19 = 0;
b = 0; c = -19;
y1 + y2 = 0;
y1 * y2 = -19.
3) -y^2 + y = 0;
b = 1; c = 0;
y1 + y2 = -1;
y1 * y2 = 0.
4) x^2 + 41x - 371 = 0;
b = 41; c = -371;
x1 + x2 = -41;
x1 * x2 = -371.
5) x^2 - 210x = 0;
b = -210; c = 0;
x1 + x2 = 210;
x1 * x2 = 0.
6) 3x^2 - 10 = 0;
b = 0; c = -10;
x1 + x2 = 0;
x1 * x2 = -10.