Question

The solutions of x2 + 3x + 12 = 0 are

Answer 1

we have the equation

`x^2+3x+12=0`

Solve using the formula

a=1

b=3

c=12

substitute

`x=(-3(+-)√(3^2-4(1)(12)))/(2(1))`
`x=(-3(+-)√(-39))/(2)`

Remember that

i^2=-1

so

`x=(-3(+-)i√(39))/(2)`

The answer is the fourth option