Question

On common factorization 12a+9 becomes 3a(4a+3) 
​

Answer 1

Answer:

noo that's not correct

the correct ans is

3(4a+3)...taking 3 as common

Answer 2

SOLUTION

TO CHECK THE STATEMENT

On common factorisation 12a + 9 becomes 3a( 4a + 3) 

EVALUATION

PROCESS : 1

Here the given expression is

$\sf{12a + 9}$

First we factorise two Terms 12a and 9

12a = 2 × 2 × 3 × a

9 = 3 × 3

We can see that 3 is the only common factor between 12a and 9

∴ 12a + 9

= 3 ( 4a + 9 )

Hence the statement is FALSE

PROCESS : 2

We are proceeding to check whether

12a + 9 = 3a( 4a + 3) or not

Here

3a(4a + 3 )

= ( 3a × 4a ) + ( 3a × 3 )

$\sf{ = 12 {a}^{2} + 9a}$

$\sf{ \ne \: 12a + 9}$

Hence the statement is FALSE

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