Question

5x square -6x-2=0 Quadratic equation by fromula​

Answer 1

Answer:

$5 {x}^{2} - 6x - 2 = 0$

$x = (6 + \sqrt{76} ) \div 10$

or

$x = (6 - \sqrt{76} ) \div 10$

and so

$x = (3 + \sqrt{19} ) \div 5$

or

$x = (3 - \sqrt{19} ) \div 5$

Answer 2

Step-by-step explanation:

$5 {x}^{2} - 6x - 2 = 0 \\ a = 5 \\ b = 6 \\ c = 2 \\ x = (- b + - \sqrt{ {b}^{2} - 4ac } ) \div 2\\ x = (- 6 + - \sqrt{36 - 4 \times 5 \times 2 } ) \div 2\\ x = (- 6 + - \sqrt{ 36 - 40 } ) \div 2 \\ x = ( - 6 + - 4i) \div 2 \\ x = 2( - 3 + - 2i) \div 2 \\ x = - 3 + - 2i \\ x = 3 + 2i \: or \: \: x = 3 - 2i$