Question

10x²-5x-5=0
Responde se pow ;-;

Answer 1

$- ( - 5) \sqrt{ { - ( - 5)}^{2} - 4 \times 10 \times ( - 5) } \div 2 \times 10 \\ 5 \sqrt{25 + 200} \div 20 \\ \\ 5 + 15 \div 20 = 1 \\ \\ 5 - 15 \div 20 = \frac{10}{20} = \frac{1}{2}$