Question

найдите корни уравнений ​

Answer 1

7.8
1) x1=−1/50+√101/50
x2= -√101/50-1/50

3)х1=-1/3
х2=4

2) x1=−9/7-√46/7
x2=−9/7 +√46/7

4) x1=2/9-√22/9
x2=2/9+√22/9