Question

Can someone explain to me, STEP BY STEP how to do this problem please, its Algebra 2-Complex numbers. -6(x+5)^2=120

Answer 1

first divide both sides by -6
what u get ?

Answer 2

and u should know that \(\huge \sqrt{-1}=i\)

Answer 3

6(x+5)^2+120 =
(x+5)^2 - 20i^2 =0 ( and then factorise ) as i^2 =-1

Answer 4

hartn good explanation and asking for participation . well done !!