Answer with explanation:
→Area of Rectangle = Length × Breadth
→Area of Square = (Length of side)²
⇒4 x= Area of Rectangle having length of one side= 4 units and length of other side equal to x units
⇒ 9 x=Area of Rectangle having length of one side= 9 units and length of other side equal to x units.
⇒x²=Area of Square having length of each side= x units
It must be Kept in mind that, side length can't be Negative.
So, if x is a Positive real number >0, then almost in all the cases
⇒x²< x²+3< 4 x < 4 x+9 < 9 x < 9 x+1
