Question

factorise 3-12(a-b)²

Answer 1

Hi, 

Problem: 3 - 12(a - b)^2 

*** take 3 Common ** 

= 3[1 - 4(a - b)^2] 

= 3[(1)^2 - {2(a - b)}^2] 

= 3[(1)^2 - (2a - 2b)^2] 

= 3[(1 + 2a - 2b)(1 - 2a + 2b)] <==ANSWER 

Since, a^2 - b^2 =(a +b)(a - b) 

Hope i helped u :).

Answer 2

HEY MATE HERE IS YOUR ANSWER‼️

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3( 1 - 4(a - b)2))

3( 12 - [2(a - b)]2 ))

3( 1 + 2( a - b)) ( 1 - (2(a - b))) ]

3[ 1 + 2a - 2b) ( 1 - (2a - 2b)

3(1+ 2a - 2b)(1 -2a + 2b)

Ans: 3(1+ 2a - 2b)(1 -2a + 2b)

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HOPE THIS ANSWER HELPS TO YOU✌️✌️

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