Question

A rectangle is (8x+5) cm long and (5x+3) cm broad find its area

Answer 1

If we were provided the value of ' x ' then I may have given you the exact value of area but in this case I will give the area in terms of ' x '.

Length of the rectangle = ( 8 x + 5 ) cm
Breadth of the rectangle = ( 5 x + 3 ) cm

We know that area is the measure of region enclosed by its boundaries.

Hence,

Area of rectangle = Length * Breadth

Area = ( 8x + 5 ) ( 5x + 3 )
Area = 40x ^ 2 + 24x + 25x + 15
Area = ( 40x ^ 2 + 49x + 15 ) sq. cm

Answer 2

HEY MATE HERE IS YOUR ANSWER

We know that the area of rectangle is Length × breadth.

Length of rectangle = (8x +5)
Breadth of rectangle =(5x +3)

Put values in formula

= (8x +5) × (5x+3)
= 40x^2 + 24x + 25x + 15
= 40^x + 49x + 15 cm^2

Therefore the area of rectangle is

$= > {40x}^{2} + 49x + 15 \: c {m}^{2}$
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Hope it will help you