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Criado por Isaacs ArtisticDrawings
7 meses atrás
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Learning Objectives
Multiply and divide integer powers Expand a single term over brackets and collect like terms Expand the product of two or three expressions Factorise linear quadratic and simple cubic expressions know and use the laws of indices Simplify and use the rules of surds Rationalise denominators
1.1 Index Laws
a^m x a^n = a^m+n a^m / a^n = a^m-n (a^m)^n = a^mn (ab)^n = a^nb^n
1.2 Expanding Brackets
(x + 5)(4x - 2y + 3) = x(4x - 2y + 3) + 5(4x - 2y + 3) = (4x^2 - 2xy + 3x) + (20x - 10y + 15)
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