Question

a rectangle is (8x + 5 ) cm long and ( 5x + 3) cm borad. find the area

Answer 1

Hey user

Here is your answer :-

Lenght = ( 8x + 5 )cm

Breadth = ( 5x + 3 )cm

Area of rectangle = lenght × Breadth

= ( 8x + 5 )( 5x + 3 )

= 40x² + 25x + 24x + 15

= 40x² + 49x + 15

Thank you.

Answer 2

We know area of rectangle=length*breadth.

Given length=8x+5

breadth=5x+3

Area=$(8x+5)*(5x+3)$

$\implies 8x(5x+3)+5(5x+3)$

$\implies 40x^2+24x+25x+15$

$\implies 40x^2+49x+15$

That's the answer mate.

Hope it helps.