Question

х^2 =-14-9х не получается помогите

Answer 1

X^2 = - 14 - 9x
X^2 + 9x + 14 = 0
D = 81 - 56 = 25 ; VD = 5
X1 = ( - 9 + 5 ) : 2 = - 2
X2 = ( - 9 - 5 ) : 2 = - 7

Answer 2

x^2+9x+14=0
D=9^2-4*14=81-56=25
X1=(-9+5)2=-2
X2=(-9-5)2=-7