Question

ײ+8×+16=0 rezolvati ecuatia de gradu 2​

Answer 1

Răspuns:

a=1

b=8

c=16

Delta = b²-4ac

Delta = 8²-4x16

Delta = 64-4x16

Delta = 0

$x1 = \frac{ - b + \sqrt{delta} }{2a} \\ \\ \frac{ - 8 + \sqrt{0} }{2} = \frac{ - 8}{2} = - 4$

$x2= \frac{ - b - \sqrt{delta} }{2a} \\ \\ \frac{ - 8 - \sqrt{0} }{2} = \frac{ - 8}{2} = - 4$