Question

x²-5x-3=0 fórmula general​

Answer 1

Explicación paso a paso:

$a = 1 \\ b = - 5 \\ c = - 3 \\ x = \frac{ - ( - 5) + - \sqrt{ { - 5 }^{2 }} - 4 \times 1 \times - 3}{2 \times 1} \\ x = \frac{5 + - \sqrt{25 + 12} }{2} \\ x = \frac{5 + - \sqrt{37} }{2} \\ x1 = \frac{5 + \sqrt{37} }{2} \\ x2 = \frac{5 - \sqrt{37} }{2}$

Answer 2

Explicación paso a paso:

2x+7x-15=0 fórmula general