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Jonathan F.'s Resources

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First, break 75 into its prime factors: 3, 5, 5. Right now, you have 3 · 5 · 5 under the radical sign. If you have a pair, you can simplify, by putting one of its members (a 5) in front of the radical sign, and removing the other one, since the square root of 52 is 5. The 3 remains...

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You have a cube root in your denominator. Conjugates only apply to square roots and complex numbers! Don't use them with cube roots, etc.!   1 ------------- 1 - cbrt(3)   What if you could make a difference of two cubes out of that denominator? After all, a cube...

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This is simply subtracting fractions with like denominators. 5/(x+4) - x/(x+4) = (5-x)/(x+4)   Also, make sure that you specify the domain restriction: x ≠ -4, because if x = -4, then the denominator will be 0, which you cannot have.

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2n/5 ... let's say that each "n" is a pizza. If you have 2 pizzas, and divide them equally amongst 5 people, each person gets 2/5 of a pizza. Therefore, 2n/5 can be expressed as (2/5)n.   (-n/6) ... again, let's say that each "n" is a pizza. If you have 1 pizza,...

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A network printer is a printer that is connected to a network. Normally, a printer is connected to one computer, which means that you have to use that computer, in order to print to that printer. However, every computer would then need its own local printer. Sharing a printer over a network...

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