Question

5x^3+15x^2+10x please help with this I need to see how its worked out not just the answer I no the answer just don't no how to work out the problem

Answer 1

hi!

5x^3+15x^2+10x = 0

x(5x^2+15x+10) = 0

=> x=0

5x^2+15x+10=0

5(x^2+3x+2)=0

=> (x+1) (x+2) = 0

x= -1 , x= -2

it has three answers, hope im right :)