Factorise: abx + aby - bcx - bcy
abx + aby - bcx - bcy = ab(x + y) -bc(x + y) = (x + y)(ab -ac) = a(b - c)(x + y)
Factorise: abx+aby−bcx−bcy [2 MARKS]
Factorise : 2ab2−aby+2cby−cy2