Explicație pas cu pas:
[tex]a) \: 4.82 {x}^{2} = 0 \\ {x}^{2} = 0 \div 4.82 \\ {x}^{2} = 0 = > x = \sqrt{0} = 0 \\ \\ b) \: - 50 {t}^{2} = 0 \\ {t}^{2} = 0 \div ( - 50) \\ {t}^{2} = 0 = > t = \sqrt{0} = 0 \\ \\ c) \: 3 \sqrt{2} {z}^{2} = 0 \\ {z}^{2} = 0 \div 3 \sqrt{2} \\ {z}^{2} = 0 = > z = \sqrt{0} = 0 \\ \\ d) \: - 0.8 {y}^{2} = 0 \\ {y}^{2} = 0 \div ( - 0.8) \\ {y}^{2} = 0 = > y = \sqrt{0} = 0 [/tex]
Succes!
