Question

factorise 3x2 +13x+12​

Answer 1

Answer:

$3x {}^{2} + 9x + 4x + 12$

3x ( x + 3 ) + 4 ( x + 3 )

( x + 3 ) ( 3x + 4 )

Answer 2

3x² + 13x + 12

( 3x² + 4x ) + ( 9x + 12 )

x ( 3x + 4 ) + 3 ( 3x + 4 )

( 3x + 4 ) ( x + 3 )