Question

Y elevado ao quadrado+12y+35=0

Answer 1

y2+12y+35=0
delta= b2-4ac
delta= 144-4.1.35
delta= 144-140
delta= 4

x= -b-+raiz de delta/2a
x'= -12+2/2
x'= -10/2
x'= -5

x''= -12-2/2
x''= -14/2
x''= -7

S={-5,-7}

Answer 2

y² + 12y + 35 = 0
(y+7).(y+5) = 0

y+7 = 0
y = -7

y+5 = 0
y = -5