Question

r^2+13r-30=0 step by step please with final answer thanks

Answer 1

r^2+13r-30=0


(r+15)(r-2)=0


r+15=0 or r-2=0


r=-15 or r=2

Answer 2

okay can you check it for me please, thanks

Answer 3

Simply plug r=-15 into the original equation and simplify. You should get 0=0 as a result. Do the same for r=2.

Answer 4

thanks