ASK how to find a difference as quickly as possible 4 terms 1x3 ● ● ● ● Look for this pattern - (y^2 - 2yx + y^2) -----> (y-z)(y-z) Look for this pattern - (y^2 - 6x + 9) -----> (y-3)(y-3) Also look for the perfect cube or square at the end, for the one term They don't always have to be in order. x 2x2 ● ● ● ● Even if it doesn't look like it, always try this situation if you don't see 3 x 1, 1 x 3. Factor out the GCF Common tricky pattern - Difference of squares in the original problem. IMPORTANT - you must eventually have a common GCF or switch your method! 3 Terms 1. If a problem has 3 terms and a prime term ------> break up the prime term! a. To break up the prime terms think about equal ratios of coefficients 2. Then most likely use 2 x 2 rules. Normal Factoring ● ● Big middle terms = 16z^2 - 56z^2 + 49 -----> (4z-7)(4z-7) xy term in the middle = 50x^2 + 45xy -18y^2 -----> (10x - 3y) (5, + 6y) Mistakes ● ● ● ● ● ● ● ● Think about 1 and 2 terms -----> These simplify differently. ALWAYS LOOK TO SIMPLIFY MORE! DISTRIBUTE THE NEGATIVE TO BOTH TERMS! ------> 1.BE VERY VERY VERY VERY VERY CAREFUL WHEN DISTRIBUTING Always combine like terms, if you can't simplify more! DO NOT DISTRIBUTE TOO EARLY, this is a TRAP Don’t waste time factoring a problem, you cant actually FACTOR ------> think about the trick! Do not simplify fractional exponents, unless the directions say DO NOT LEAVE NEGATIVE EXPONENTS