Target: On completion of this worksheet you should be able to factorise any ... Factorise xy2 + 3xy - 2y2. The common factor is y. The terms xy2, +3xy and –2y2 must be ...
Revise question and answers of Lesson 9 and Lesson 14 Treasure Trove ... Subtract 8y2-3xy+2x2 from 2x2-3xy-5y2. Subtract 6x2-6xy-y2 from the sum of x2+5xy-2y2 and ...
Consider a function f = 2x2 + 3xy + 5y2. Suppose we want to express f as the sum of 3 new variables f = a + b + c where a = 2x2, b = 3xy and c = 5y2. ...
When combining positive and negative numbers, if the signs are alike, add the ... 5xy8 – 3xy (for hints on factoring out the common factors, see the hints to problems 110-120) ...