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=$\frac{3}{5}$