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4x 4 4x 2 1
4x 4 4x 2 1 pictures 5
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4x 4 4x 2 1
2 4x 1 3x 3 4x 4 3x
3x 2 4x 4 4x 1
16x 4 4x 2 4x 1 factorise
1 4x 5 2x 2 4 1 4x
1 4x 4 3 4x 2 7
1 2 4x 3 )u003d 3 4 4x 5
16x 4 4x 2 4x 1
factor 4x 4 4x 2 1
4x 4 4x 2 1 0
4x 4 4x 2 1
