Question

Resolva em r a equação
(3x-1)²+(x-2)²=25

Answer 1

$(3x - 1 {)}^{2} + (x - 2 {)}^{2} = 25 \\ 9 {x}^{2} + 1 + {x}^{2} + 2 = 25 \\ 10 {x}^{2} + 3 = 25 \\ 10 {x}^{2} = 25 - 3 \\ 10 {x}^{2} = 22 \\ {x}^{2} = \frac{22}{10} \\ x = \sqrt{ \frac{22}{10} }$