Question

ayuda
1-.x^2-25=0
2-.x^2-36=0
3-.7^2+14=861
4-.x^2-10/4=15/4
5-.x^/3+5/6=11/12
6-.11=121/x^2

Answer 1

Explicación paso a paso:

$1) \\ {x}^{2} - 25 = 0 \\ {x}^{2} = 25 \\ x = \sqrt{25} \\ x = 5$

$2) \\ {x}^{2} - 36 = 0 \\ {x}^{2} = 36 \\ x = \sqrt{36} \\ x = 6$

$3) \\ {7}^{2} + 14x = 861 \\ 49 + 14x = 861 \\ 14x = 861 - 49 \\ 14x = 812 \\ x = 812 \div 14 \\ x = 58$

$4) \\ {x}^{2} - \frac{10}{4} = \frac{15}{4} \\ \\ {x}^{2} = \frac{15}{4} + \frac{10}{4} \\ \\ {x}^{2} = \frac{25}{4} \\ \\ x = \sqrt{ \frac{25}{4} } \\ \\ x = \frac{5}{2}$

$5) \\ x \div 3 + \frac{5}{6} = \frac{11}{12} \\ \\ x \div 3 = \frac{11}{12} - \frac{5}{6} \\ \\ x \div 3 = \frac{11 - 10}{12} \\ \\ x \div 3 = \frac{1}{12} \\ \\ x = \frac{1}{12} \times 3 \\ \\ x = \frac{3}{12} \\ \\ x = \frac{1}{4}$