View BonusWk5_(2)pdf from MATH 17 at The University of Western Australia MATH17 Bonus Exercises, Week 5 STUDYSmarter 1 Expand the following (a) (x 1)(x 3When expanding (), a special relationship exists between the coefficients of the terms when written in order of descending powers of x and ascending powers of yThe coefficients will be the numbers in the (n 1)th row of Pascal's triangleFor example, when expanding (), the following is obtained See also Polynomial factorization;Expand the following binomial expression using the binomial theorem ( x y) 4 The expansion will have five terms, there is always a symmetry in the coefficients in front of the terms We use the binomial theorem to expand our binomial ( x y) 4 = 1 x 4 y 0 4 1 (
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