Question

solve the quadratic equations5x(x+2)=3 give your answer to correct two decimal places​

Answer 1

$5x(x + 2) = 3 \\ {5x}^{2} + 10 = 3 \\ 5 {x}^{2} = 3 - 10 \\ {5x}^{2} = - 7$

Adding squares on both sides

${5}^{2} x = {( - 7)}^{2} \\ 25x = 49 \\ x = \frac{49}{25} = 1.96$

Hope this will be helpful.