Power prep plus online 3 : SPOILER : INEQUALITIES

[C.Koushik]

X(x+3)(x-5)>0

If you get an equation like a.b.c.d > 0 (or a.b.c.d < 0), all you gotta do is draw a number line. Mark all the points where the terms a, b, c, and d are zero. And mark the alternative regions + and -, and pick the regions you want. For your question, the roots would be x=0,-3 and 5 Draw a number line and plot the zeroes like this [WhatsApp Image 2021-08-29 at 14.43.45] Select a point in any region, and find what the value of the expression will be. [forum (1)] For instance, I chose 8 her…

I think this is the same Question. But here is a general way to attempt inequality questions when factors are given.