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nydus/The First Steps in AlgebraPublic
Page 15 of 227
Table of Contents

PARENTHESES.

  1. 7(8+5).
  1. 7(8−5).
  1. 6(7+3).
  1. 6(7−3).
  1. 8(7+5).
  1. 8(7−5).
  1. 9(6−2).
  1. 4(a+b).
  1. 4(a−b).
  1. 2(a2+b2).
  1. 2(a2−b2).
  1. 3(ab+c).
  1. 3(ab−c).
  1. 3(c−ab).
  1. a(b+c).
  1. a(b−c).

3 a ( b + c )

15