Question

Factorize 9x2-12x+4 using identities​

Answer 1

Answer:

Given to Factorise:-

$9 {x}^{2} - 12x + 4$

Identity used:-

${a}^{2} - 2ab + {b}^{2} = ({a - b)}^{2}$

Solution:-

$9 {x}^{2} - 12x + 4$

$( {3x})^{2} -( 2 \times 3 \times 2) + {2}^{2}$

$( {3x - 2)}^{2}$

Answer 2

Answer:

By factorization.

9x^2 - 12x + 4 = 9x^2 - 6x - 6x +4

= 3x ( 3x - 2 ) - 2 ( 3x - 2 )

= ( 3x - 2 ) ( 3x - 2 )