Monday

December 22, 2014

December 22, 2014

Posted by **Sam** on Saturday, July 9, 2011 at 5:51pm.

(x+18)(x-18)(x+12)>0

Solution set is {x|-8,-12}

Is this correct?

- math am i right? -
**MathMate**, Saturday, July 9, 2011 at 7:28pmThe leading term of the cubic is positive, so for x->∞, the function f(x) approaches ∞.

There should in fact be two intervals where f(x) is >0, between the two smaller zeroes, and when x>the largest zero.

If you plot the function, it will make it clear.

**Answer this Question**

**Related Questions**

Algebra - 1.Solve (x)/(x+10)+(x-3)/(x+2)=7/5..I got that there is no solution, ...

math,help - is this correct solve and graph the solution set: -3x+10>25 -3x&...

math(am i right) - determine whether (-5,1) is a solution of 9x-9y= -3 I said no...

math - Solve: 4 + 5x < 29 5x < 4 +29 5x < -4 +29 5x=-25 Solution set is...

Math - ( / means absolute value) Solve: 3+/2y-1/>=1. Graph the solution set ...

math,help - is this correct solve and graph the solution set 3(x-4) > 7x-9 my...

Math - Solve 3(3-8x)+5<2(9+6x) Use set builder notion to describe the ...

Math help!! - Solve 3(3-8x)+5<2(9+6x) Use set builder notion to describe the ...

Solve the polynomial inequality - Solve the polynomial inequality and graph the ...

algebra - Q: when graphing the equation y = 4/3x + 2, the y intercept is? A: (0,...