Algebraic
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Expand the following. -2(a - 4b) , 3z(z + a - 3)
-2a + 8b, 3z² + 3az - 9z
Expand the following. (i) ½(4x - 6y) , (ii) y(y - 3x) + x(3y - 2x)
(i) 2x - 3y (ii) y^2 - 2x^2
Evaluate: (i) 4(h - 5) when h = 9 (ii) 3z + 4 when z = 3
(i) 16 (ii) 13
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