Question

Solve 3x^2 + 4x = –5 Show your work please.

Answer 1

D=16-60=-44

x_1,2=(-4+/- sqrt(-44))/12 = (-4+/- isqrt(4*11))/12 =
=(-4+/- 2isqrt11)/12 =(-2+/- isqrt11)/6

Answer 2

u bring the -5 to the left side,u get 3x^2+4x+5, then u solve for (delta) delta= b^2-4.5 u get -44 and since delta<0 there are no solutions

Answer 3

sorry delta= b^2-4.5.3

Answer 4

yes you know it right but if delta is less than zero the function will have complex roots

Answer 5

- so how i have got there

Answer 6

ok ?