Is the polynomial 3x^2(x^2 + 2x + 1) completely factored? if not, factor it.

The decibel level of sound is 50 db greater on a busy street than in a quiet room where the intensity of sound is watt/m2. the level of sound in the quiet room is db, and the intensity of sound in the busy street is watt/m2. use the formula , where is the sound level in decibels, i is the intensity of sound, and is the smallest sound intensity that can be heard by the human ear (roughly equal to watts/m2).

What is the value of x in the equation 2(x-4) = 4(2x + 1)?

What would the rule be for the reflection of y=-3