Question

(x+13)(x-7)(x+4)>0

Answer 1

There will be 2 inequalities,

x>7,-13<x<-4

Answer 2

how did you get it, saifoo?

Answer 3

Graphing.

Answer 4

I mean, how? what do you do? sorry, I don't remember this kind of format. :)

Answer 5

uhh *equate* each factor to zero

x + 13 > 0
x - 7>0
X+ 4 > 0

solve for x in those three thingies

Answer 6

so shouldn't it be: -13, -4, 7 < x

Answer 7

lol honestly..there's no notation like that

it's x > 7
x> -13
x> -4

idk how @saifoo.khan got x<-4

Answer 8

I have done same problem million times. i have found a shortcut for it. ;D
i solve all the same way

Answer 9

oh..saifoo is experienced...let's all put our trust in him then :DDD

Answer 10

But we basically solve it using a number line.

Answer 11

(x+13)(x-7)(x+4)>0

(x+13)(x+4)> 0 and x-7>0

Now solve.

Answer 12

@lgbasallote ^

Answer 13

x > -3.06 hahaha lol

Answer 14

What;s that? o_O

Answer 15

idk lol

Answer 16

Drunk? :D

Answer 17

lol, thx guys, ps. how would it look on a graph, i know you math experts love graphs

Answer 18

high

Answer 19

haha

Answer 20

<--i dont...make me answer trig, algebra, geometry even calculus..but graphing...that's where i draw the line

Answer 21

lol, you're a funny guy lgbasallote

Answer 22

haha thanks ^_^

Answer 23

but i really am weak in graphing