Question

Equação de 2°grau formula de Bhaskara x²+8x+15=0

Answer 1

x²+8x+15=0

/\=b²-4.a.c

x= -b+-V/\ ÷2.a

a=1
b=8
c=15

/\=8²-4.1.15
/\=64-4.15
/\=64-60
/\=4

x'= -8+V4÷2.1
x'= -8+2÷2
x'= -6÷2
x'= -3

x"= -8-V4÷2.1
x"= -8-2÷2
x"= -10÷2
x"= -5

S={-3,-5}