http://www.yourmathstutor.info/wiki/ 2009-11-26T07:09:29+00:00 http://www.yourmathstutor.info/wiki/ http://www.yourmathstutor.info/wiki/lib/images/favicon.ico text/html 2007-01-18T17:17:41+00:00 http://www.yourmathstutor.info/wiki/questions:factorising?rev=1169140661&do=diff There are two sorts of number: prime numbers and non-prime, or composite, numbers. A composite number can be made by multiplying two or more prime numbers together. For example <math>15 = 3 \times 5</math> <math>6 = 2 \times 3</math> We usually think of factors in pairs - 6 times 2 is 12. But 6 and 2 aren't the only factors of 12... text/html 2006-11-22T08:46:42+00:00 http://www.yourmathstutor.info/wiki/questions:remove_brackets?rev=1164185202&do=diff e.g. <math>3(x + 4y) = 3x + 12y</math> Simplify the following expressions... * 2(x + y) * 3(x + 2y) * 2(2x + 2y) * 5(x - 2y) * -2(2x + y) * -3(x - 2y) * -3(-3x + 2) * 5(x - 2y) - 2x * 4(x - y) - 2(x + 2y) * 3(2x + y) + 2(x - 2y) * (x - y) - a(x + 2y) * 2x + 3y - (x - 3y) * 5(x - 2y - z) + 3(x - y + 2z) * 3(x + 8) - 4(2x - 5) * x(x + 1) * x2(x - 7) * x3(x - 7) - x * x(x - 4) + 3(x - 2) * x(2x + 3) - 4(3x - 1) * x(x2 + 1) - x2(x + 1) text/html 2006-11-22T13:20:27+00:00 http://www.yourmathstutor.info/wiki/questions:simplifying?rev=1164201627&do=diff To answer the following questions you need to collect together like terms. For example <math>2x - 3y - x + 4y</math> can be simplified to give <math>x + y</math> Remember that these are expressions and not equations (i.e. they don't contain an equals sign). text/html 2007-08-12T12:24:41+00:00 http://www.yourmathstutor.info/wiki/questions:start?rev=1186921481&do=diff Here you will find a whole host of exam questions for you to try. The questions are grouped into four categories * Number * Algebra * Expanding Brackets * Simplifying Expressions * Factorising/Factoring Expressions * Shape, Space and Measure * Data Handling