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Answers by Guy K.

Hi Holly, The distributive property states that when you multiply one factor by a polynomial, the factor must be multiplied by every term in the polynomial separately. In your example, you're multiplying -6 by the polynomial (a+8). The distributive property states that you must multiply...

Hi Prasenjeet, I do not believe "elementary molecule" is still a common term in chemistry, but I did find the following wikipedia article that explains that Avogadro used to refer to atoms as "elementary molecules" and to compounds as "compound molecules" (http://en...

Hi Tyler, To isolate x (i.e. to remove everything else on the right side of the equation), you need to add m/a. This is because x-m/a+m/a = x. But remember that what you do on one side of the equation must be done on the other side to keep the equation valid: Z = x - m/a +m/a...

Hi Joana, To solve this problem, remember that what you do on one side must be done on the other side. This ensures that you don't change the original equation given. (I will be happy to elaborate if that is unclear). The goal is to isolate x. To do this, you want all of the terms with x's...

Hy Kyndell, Just to clarify, is this question asking to classify the number 3400? If so, here is how one goes about the problem: The first categorization of a number is real or imaginary. Real numbers do not contain the number i (which represents the square root of -1). 3400 is a real number...