6) \sqrt[3]{4x+8} = 1.5

OK, let's solve the equation step by step: First, the equation is: $$\sqrt[3]{4x+8} = 1.5$$ To eliminate the cube root, we need to raise both sides of the equation to the power of 3: $$(\sqrt[3]{4x+8})^3 = (1.5)^3$$ This simplifies to: $$4x+8 = 3.375$$ Now, subtract 8 from both sides: $$4x = 3.375 - 8$$ $$4x = -4.625$$ Finally, divide both sides by 4: $$x = \frac{-4.625}{4}$$ $$x = -1.15625$$ So the solution is: Answer: -1.15625