Question

15. Give possible expressions for the length and breadth of each of the following
rectangles, in which their areas are given:
Area : 250-35a +12
Area : 35y2 + 13y-12​

Answer 1

Answer:

25a²-35a+12

= 25a² -20a -15a +12

= 5a(5a-4) -3(5a-4)

= (5a-4)(5a-3)

length= (5a-4) or, (5a-3)

breadth= (5a-3) or, (5a-4)

35 y² +13y -12

= 35y² +28y -15y -12

= 7y(5y +4) -3(5y +4)

= (7y-3)(5y+4)

length= (7y-3 ) or, (5y+4)

breadth= (5y+4) or, (7y-3)