Question

Решите уравнение:
1) (х + 3) 4 – 3(х + 3) 2 – 4 = 0;
2) (2x + 1) - 10(2x + 1)2 + 9 = 0;
3) (6x — 7)+ + 4(6x — 7)2 + 3 = 0;
4) (x — 4) 4 + 2(x — 4)2 – 8 = 0.​

Answer 1

(x+3)4-3(x+3)2-4=0

4x+12-6x-18-4=0

4x-6x=-12+18

-2x=6

x=-3