
108 1 8 3
3-1 3-3 ☐
24 4
1 (2𝑥 − 1)(𝑥 − 3)+ 3
2 𝑥2− 8𝑥 = 5 (𝑥 − 𝑎)2= 5 + 𝑏 𝑎 𝑏 𝑎 + 𝑏=
3
4 (𝑚 + 1)𝑥2− 4𝑥 + 4 = 0 𝑚 =
5 𝑥2+𝑘𝑥 +24 (𝑥 + 𝑎)(𝑥 + 𝑏)𝑎 𝑏 𝑘
6 𝑥 = 𝑘 𝑥2− 2𝑥 − 5 = 0 √(𝑘 + 1)(𝑘 − 3) + 7 =
56 4
1
(1) 𝑥2−13𝑥 − 30 =
(2) −4𝑥2+ 9𝑥 + 9 =
(3) 𝑥2+7
2𝑥 + 3
2=
(4) (𝑎 − 𝑏)2+ 4(𝑎 − 𝑏)−32 =
2
(1) 7𝑥2−28𝑥 = 0 𝑥 =
(2) 𝑥2+22𝑥 + 121 = 0 𝑥 =
(3) (9𝑥 + 2)(𝑥 + 3) = (8𝑥 + 5)(𝑥 + 3) 𝑥 =
(4) 𝑥2− 6𝑥 − 9991 = 0 𝑥 =
(5) 2𝑥2+ 5𝑥 − 5 = 0 𝑥 =
3𝑥 = −4 4𝑥2+36𝑥 + 𝑚 = 0
(1) 𝑚 =
(2)

4𝑥2− 3𝑥 + 𝑎 = 0 3+√5
2𝑎 =
515 12
3
5
6 3
20 5
1(2𝑥 + 1)(2𝑥2− 5𝑥 − 3)+(4𝑥 + 2)(𝑥 − 3)(𝑥 + 5)
2𝑥12𝑥
(𝑥 + 4) (7𝑥 + 1) 2
3100 400 1
2 45000
4𝑥2+𝑚𝑥 − 8 = 0