Question

CASE STUDY Prakash decided to donate a rectangular plot for the shelter of animals. The width of the plot was x units and length was five less than 7 times of its width. i) Express the length as a polynomial. ii) Represent the perimeter as a polynomial. iii) Represent the area of the plot. iv) Express the perimeter if the length is increased by 2 units. v) Express the area if the length is decreased by 2 units.​

Answer 1

Answer:

i) 7x-5

ii) 2(x+7x-5)

2(8x-5)

16x-10

iii)7x²-5x

iv) 7x-3

v) 7x-5-2

7x-7

7x²-7x

7x(x-1)