Test: Factorisation II - Normal

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Question 1:   Factorise: 3m n 2 +6 m 2 n
3mn( n+2m )
3 m 2 n( 2m+1 )
9 m 3 n 3
2mn( m+3n )
Question 2:   Factorise: 3 m 3 n 2 6 m 2 n+9mn
m 2 n( 3mn6m+9 )
6 m 2 n 2
3mn( m 2 n2m+3 )
3 m 2 n 2 ( m2n+3 )
Question 3:   Factorise: ab+b+a+1
Cannot be factored
( a1 )( b+1 )
( a+1 )( b+1 )
b( a+1 )+a+1
Question 4:   Factorise: x 2 1
( x+1 )( x+1 )
( x1 )( x1 )
x( x1 )
( x1 )( x+1 )
Question 5:   Factorise: m 2 n 2
( m+n )( nm )
( m+1 )( n1 )
( m+n )( mn )
( m+1 )( n+1 )
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