nal algebraic equation into quadratic equation
20
2 х
+
X 5
3
+
8
II
5x 3
+ 3x2 =
3x2 -40x+30 = 0
- b ± √b² |
(6)
-(-40) + 402 – (4)(3)(30)
2(3)
360
+
40 I V
6​