Test Section08SolvingInEqTest

For what values of $t$ is $-4t^2(t-1)>0$?

For what values of $t$ is $-3t^3(2-t)<0$?

For what values of $w$ is $|3w-2|-4<0$?

For what values of $x$ is $\displaystyle{2x^2-(2x+1)(2x)\over x^4}\ge 0$?

For what values of $x$ is $|2x+3|<4$?

For what values of $x$ is $4x^{3/5}$ positive?

For what values of $x$ is $4e^{3x-1}$ positive?

For what values of $x$ is $-3x^{-2/5}$ positive or zero?

For what values of $x$ is $\displaystyle{3(x+2)^2-6x(x+2)\over(x+2)^4}\le0$?

For what values of $x$ is $-{2x-1\over x^2+1}$ positive or zero?