Apply identity a) (4x-9)2 b) (2y-1)(2y+1)
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(1) 7xyz. Monomial. (2) 9 − 4y. Binomial. (3) 4y2− xz. Binomial. (4) x − 2y + 3z. Trinomial ... (i) (x + 6)(x − 6); (ii) (3x + 5) (3x − 5); ... The value of (7.2).
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