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N(a-b) is equal to algebra |
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Answer» Step-by-step explanation: Algebra Formulae Algebra Factors and Expansions Powers and Roots Proportion Common Irrational Numbers Recommended Algebra Books Site Index Algebra Factors and expansions: a, b real; n positive INTEGER (a + b)2 = a2 + 2ab + b2 (a + b)3 = a3 + 3A2B + 3ab2+ b3 (a + b)4 = A4 + 4a3b + 6a2b2 + 4ab3 + b4 a2 - b2 = (a - b)(a + b) a2 + b2 = (a - bi)(a + bi) a3 - b3 = (a - b)(a2 + ab + b2) a3 + b3 = (a + b)(a2 - ab + b2) a4 + b4 = (a2 + √2ab + b2)(a2 - √2ab + b2) an - bn = (a - b)(an-1 + an-2b + ... + bn-1), for n even an + bn = (a + b)(an-1 - an-2b - ... - bn-1), for n odd |
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