Any time you have multiple fractions multiplied or divided its fine, just do it. If its division flip the second fraction then multiply.
From there its basically multiplying polynomials on top and on bottom. Multiply each term in the first with each in the second, the repeate with the second term from the first polynomial
(ax+b) * (c - dx + f) = acx - adx^2 + afx + bc - bdx + bf
If they are adding two fraction you need to make the denominator the same on each fraction. Anything divided by itself = 1 so you can multiply the bottom of the fraction by what ever you need to make it the same as the other one, as long as you multiply the top of the fraction by the same thing.
Make the bottom the same then add/subtract
After you have done one of those two things make sure you cancel out all the little shit like 3x-2x and 4/8 and your done.
From there its basically multiplying polynomials on top and on bottom. Multiply each term in the first with each in the second, the repeate with the second term from the first polynomial
(ax+b) * (c - dx + f) = acx - adx^2 + afx + bc - bdx + bf
If they are adding two fraction you need to make the denominator the same on each fraction. Anything divided by itself = 1 so you can multiply the bottom of the fraction by what ever you need to make it the same as the other one, as long as you multiply the top of the fraction by the same thing.
Make the bottom the same then add/subtract
After you have done one of those two things make sure you cancel out all the little shit like 3x-2x and 4/8 and your done.
Last edited by VicktorVauhn (2009-04-02 15:56:11)