Question

solve: 5x^2=-30x-65 PLease use Quadratic formula I'm only confused when it comes to breaking down the square roots please help!

Answer 1

5x^2+30x+65 factors into 5(x^2+6+13) then you can use quadratic formula
[-b(+-)sqrt(b^2-4ac)]/2a
[-6(+-) sqrt(36-4(1)(13)]/2(1)
-6(+-)sqrt(-16)/2 which gives you an imaginary number..

Answer 2

[-6 + 4 i] /2 or [-6 - 4 i]/2