Question

A rectangle has length 2x cm. perimeter 10 cm and area 18 cm square.Show that 2x^2-9x+5=0.

Answer 1

Answer:

Step-by-step explanation:

Length is 2x cm

So breadth be let 'b'cm

Now area of reactangle is length*breadth

So 2x*b=18

Or, b= 9/x

Again perimeter is 2*(length+ breadth)

So 2*(2x+9/x)=10

Or, 2x^2+9=5x

Or, 2x^2-5x+9=0

(Check your question)

Answer 2

Answer:

good explanation

Step-by-step explanation:

is not this maths quite hard.