Question

The length of a rectangle is great than breadth by 3 cm the area of rectangle is 28sq•cm•find the length​

Answer 1

Step-by-step explanation:

x×x+3=28

x×x=28-3

x^2=25

x=√25

x=5

Answer 2

Answer:

let the breadth be= Xcm

the length will be =X+3 cm

now,

area of rectangle=l*b

28=X*X+3

28=X(X+3)

28=X^2+3X

X^2+3X-28= 0

X^2+7X-4X-28=0

X(X+7)-4(X+7)=0

(X+7)(X-4)=0

X=-7(rejected value,as the side can't be negative),4

breadth=Xcm=4cm

length=X+3cm =4+3=7cm

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