Write the algebraic expression for:
(i) The area of a reactangle if its length (l) is increased by 5 and breadth (b) is reduced by 3.
(ii) Volume of a cubiod if its length (l) is reduced by 7, height (h) becomes 3 times and width (w) is increased by 2.
(i) Area of a rectangle = length × breadth
new length = l + 5
new breadth = b - 3
So, new area = (l + 5)(b - 3)
(ii) Volume of cuboid = length × height × width
new length = l - 7
new height = 3h
new width = w + 2
So, new volume = (l - 7)(3h)(w + 2)