Question

A literacy campaign was organised by class ix girl students under nss . students made (x-5) rows and (3 x-4)columns for the rally write the total number of students in the form of a polynomial

Answer 1

$Number \:of \: rows = (x-5)$

$Number \:of \: columns = (3x-4)$

$Total \: number \:of \: students \\= Number \:of \:rows \times number \:of \:columns$

$= ( x - 5 )( 3x - 4 ) \\= x( 3x - 4 ) -5( 3x - 4 )\\</p><p>= 3x^{2} - 4x - 15x + 20 \\= 3x^{2} - 19x + 20$

Therefore.,

$\red { Required \: polynomial }$

$\green { = 3x^{2} - 19x + 20}$

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Answer 2

Refers to attachment ✔✔

hope IT HELPs .....