APPLICATION (16 MARKS) #3. Calculate the area of the composite shape. Use complete and subtract. 7x-4 5x+2 #4. Factor fully. (First factor out the GCF) a) 12a² 75 - (GCF and DOS) b) 6x² 18x - 24 (GCF and P & S) (2%] [23] 2x+3 3x-2 (8 Marks)