Since the trinomial is equal to zero, you need to get two sets of binomials equal to zero: X(squared) + 4x - 5 = 0 (x + 5)(X-1) = 0 x+5=0 x=-5 x-1=0 x=1 You can go as far as checking your answers by substituting the numbers where the x's are: -5(squared) + 4*-5 - … Read more

They sure do!! I have just one angel fish in my 29 gal tank (along with other fishes) and found out it was a female because it laid eggs on my filter tube. It was interesting to watch since I didn't know what it was doing until I saw eggs around the tube. They won't … Read more