Question

Length of the rectangular
card
Breadth of the
rectangular card
card
(9x2 +2) m
(- x)m
Area of the rectangular​

Answer 1

Answer:

Given,

Length of the card

$(9x {}^{2} + 2)m$

breadth

$( - x)m$

And area of rectangle

$l \times b$

So area of card =

$(9x {}^{2} + 2) \times ( - x) \\ = \: - 9x {}^{3} - 2x \\ = - x(9x {}^{2} + 2)m {}^{2}$