Question

plz solve this tough question its in Quadratic equation​

Answer 1

Answer:

Step-by-step explanation:

Perimeter of rectangle = 2 ( l +b ) = 820 m

Area of rectangle = l*b = 400 m²

2l +2b = 820 .................... (1)

b = 400/l

sub in (1)

2l + 800/l = 820

l² + 400 = 410 l .....................(2)

solving (2)

l = value

sub in l*b = 400

you will find breadth

Answer 2

check the attachment

hope it helps