The book Elementary Algebra was written by author Erik Oberg Here you can read free online of Elementary Algebra book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Elementary Algebra a good or bad book?
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(8). [ x ( y + x)] = + x + (y + x) =xy+x = 2x y. Multiplication The first rule for multiplication in algebra is as follows: To find the product of two or more quantities, multiply together their coefficients, and prefix this product to the quantities expressed by symbols. Re- member that expressions such as 5a& imply the multiplication 5 X a X &. Examples: (1). 5arX 32/ = 5X#X3X2/ = 15X#X2/ = 15xy. (2). 3aX4bX5c = 3X4X5XaX&Xc = 60afcc. (3). 6a& X 2c = 12abc. ' (4). Xy X 3^ = Zxyz. The second ru...le for multiplication in algebra is: The sum of the exponents of the letters in the factors to be multiplied, equals the ex- ponent of the same letters in the product. Remember that a has, in fact, the exponent ( a ), although we never write it a 1, but simply drop the exponent when it is C 1 ). Examples: (1). A 2 X a 3 = (a X a) X (a X a X a) = a 5 . (2). AX a 2 = a 3 . (3). A 2 & X a = a 2 a& = a 3 &. (4). A 2 & X a& 2 = a 2 + 6 1 + * = a 3 & 3 . (5). AX a 2 & X aft 2 X 6 3 = a 4 & 6 . (6). 6a& 2 X 3a 2 & 2 = 18a 3 & 4 .
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