(-1)^1989-(-)^1988

1 answer

assuming both values are -1,

even powers of -1 are +1
odd powers are -1

so we have

-1 - +1 = -2

Or, you could factor out (-1)^1988 and have

(-1)^1988(-1 - 1) = (+1)(-2) = -2
Similar Questions
    1. answers icon 0 answers
  1. (-1)^1989 - (-1)^1988 =A. -2 B. -1 C. 0 D. 2 Is the correct answer A ?
    1. answers icon 1 answer
  2. 1988 1989Quantity Price ($) Quantity Price ($) Milk 10 1.00 15 1.20 Butter 8 0.50 20 0.50 Eggs 8 0.25 4 1.00 The table above
    1. answers icon 1 answer
    1. answers icon 3 answers
more similar questions