Q.

Divide the given polynomial by the given monomial. 

(i) (5x 2 – 6x) ÷ 3x 

(ii) (3y 8 – 4y 6 + 5y 4 ) ÷ y

(iii) 8(x 3y 2 z 2 + x 2y 3 z 2 + x 2y 2 z 3 ) ÷ 4x 2y 2 z

(iv) (x 3 + 2x 2 +3x) ÷ 2x 

(v) (p 3q 6 – p 6q 3 ) ÷ p 3q 3

see full answer

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Detailed Solution

We know that, Factorization means finding out the factors of the given algebraic expression

(i) (5x 2 – 6x) ÷ 3x :

let (5x 2 – 6x)  can be written as,

 (5x 2 – 6x)  = x( 5x - 6)

Thus, we get 

(5x 2 – 6x) ÷ 3x =  x( 5x - 6) /  3x

= (5x - 6) /  3

(ii) (3y 8 – 4y 6 + 5y 4 ) ÷ y

let  (3y 8 – 4y 6 + 5y 4 ) can be written as,

 (3y 8 – 4y 6 + 5y 4 ) = y4( 3y 4 – 4y 2 + 5)

Thus, we get 

 (3y 8 – 4y 6 + 5y 4 ) ÷ y= y4( 3y 4 – 4y 2 + 5) / y4

= 3y 4 – 4y 2 + 5

(iii) 8(x 3y 2 z 2 + x 2y 3 z 2 + x 2y 2 z 3 ) ÷ 4x 2y 2 z:

let 8(x 3y 2 z 2 + x 2y 3 z 2 + x 2y 2 z 3 ) can be written as,

8(x 3y 2 z 2 + x 2y 3 z 2 + x 2y 2 z 3 )= 8 x 2y2z 2( x + y + z)

Thus, we get 

 8(x 3y 2 z 2 + x 2y 3 z 2 + x 2y 2 z 3 ) ÷ 4x 2y 2 z 2  =8 x 2y2z 2( x + y + z) /  4x 2y 2 z 2

= 2 ( x + y + z)

(iv) (x 3 + 2x 2 +3x) ÷ 2x :

let  (x 3 + 2x 2 +3x ) can be written as,

 (x 3 + 2x 2 +3x ) = x ( x 2 + 2x + 3)

Thus, we get 

  (x 3 + 2x 2 +3x) ÷ 2x = x ( x 2 + 2x + 3) / 2x

=  ( x 2 + 2x + 3) / 2

(v) (p 3q 6 – p 6q 3 ) ÷ p 3q 3:

let  (p 3q 6 – p 6q 3 ) can be written as,

 (p 3q 6 – p 6q 3 ) = p 3q 3 ( p 3-q 3)

Thus, we get 

(p 3q 6 – p 6q 3 ) ÷ p 3q 3 =  p 3q 3 ( q 3-p 3) / p 3q 3 

=  q 3-p 3

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