Question

Решите уравнения:
1) (2х-3)^2+(3-4х)(х+5)=82
2) (4х-1)^2-(2х-3)(6х+5)=4 (х-2)^2+16х

Answer 1

4х²-12х+9+3х+15-4х²-20х-82=0
-29х=58
х=-2

16х²-8х+1-12х²-10х+18х+15-4х²+16х-16-16х=0
0х=0
х∈(-∞;∞)