ขนาดวิดีโอ: 1280 X 720853 X 480640 X 360
แสดงแผงควบคุมโปรแกรมเล่น
เล่นอัตโนมัติ
เล่นใหม่
Good
eliminating b√a+(14-a)^2 = 28let √a = xx+196+x^4 - 28 x^2-28= 0x^4 - 28 x^2+x+168 = 0x = 3 by RRTa = 9from second equation a+√b = 14√b = 5 b = 25
(14)+(14)=28 (2^2)+(2^2) (1^1)+(1^2) (1^2) (b ➖ 2a+1) (7)+(7)=14 (3^4)+(3^4) (3^2^2)+(3^2^2).(1^1^1)+(3^1^2) (3^2) (b ➖ 3a+2).
Good
eliminating b
√a+(14-a)^2 = 28
let √a = x
x+196+x^4 - 28 x^2-28= 0
x^4 - 28 x^2+x+168 = 0
x = 3 by RRT
a = 9
from second equation
a+√b = 14
√b = 5
b = 25
(14)+(14)=28 (2^2)+(2^2) (1^1)+(1^2) (1^2) (b ➖ 2a+1) (7)+(7)=14 (3^4)+(3^4) (3^2^2)+(3^2^2).(1^1^1)+(3^1^2) (3^2) (b ➖ 3a+2).