Question

х²+12х+36=0
25х²-30х+9=0

Answer 1

х² + 12х + 36 = 0
(х+6)² = 0
х+6=0
х = -6

25х² -30х + 9 =0
(5х-3)²=0
5х-3=0
5х=3
х=$\frac{3}{5}$