Question

Решите пожалуйста
(5х+3)²=5х+3​

Answer 1

(5х+3)²=5х+3​
25x²+30x+9=5x+3
25x²+30x+9-5x-3=0
25x²+15x+10x+6=0
5x×(5x+3)+2(5x+3)=0
(5x+3)×(5x+2)=0
5x+3=0
5x+2=0
x=$-\frac{3}{5}$
x= $-\frac{2}{5}$
x1= $-\frac{3}{5}$
x2= $-\frac{2}{5}$