1. Factorise the trinomials.
(i) 49a² + 28ab + 4b2
(iv) x² + 64y2 + 16xy
(vii) x² + 1 - 2x
2252
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1. Factorise the trinomials.
(i) 49a² + 28ab + 4b2
(iv) x² + 64y2 + 16xy
(vii) x² + 1 - 2x
2252
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