Question

Porfa ayúdenme, urgeeee:((((​

Answer 1

Explicación paso a paso:

 ax²  + bx +c  

X=  $\frac{-b +\sqrt{b^{2} - 4ac}}{2a}$

X= $\frac{-b -\sqrt{b^{2} - 4ac}}{2a}$

x² + 2x + 9  = 0

X= $\frac{-2 +\sqrt{2^{2} - 4(1)(9)}}{(2)(1)}$ = -1 + $\sqrt{-32}$ /2

X= $\frac{-2 -\sqrt{2^{2} - 4(1)(9)}}{(2)(1)}$= -1 - $\sqrt{-32}$  /2

x²  + 7x +3  = 0

X= $\frac{-7 -\sqrt{7^{2} - 4(1)(3)}}{2(1)}$= $\frac{-7 + \sqrt{37} }{2}$

X=$\frac{-7 +\sqrt{7^{2} - 4(1)(3)}}{2(1)}$=$\frac{-7 -\sqrt{37} }{2}$