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1-84.
  1. Calculator icon Though many students think the following statements are true, each of them is actually FALSE. Confirm this by substituting simple numbers for the variables and doing the arithmetic. Note: Do not use 0 or 1; they are too special. Homework Help ✎

    REMEMBER: EACH OF THESE STATEMENTS IS FALSE.

    1. (x + y)2 = x2 + y2

    2. square root of p to the second power plus q to the second power = p + q

    3. 3w2 =

    4. (a1 + b1)−1 = a + b

    5. 3 · 2x = 6 x

Try substituting numbers such as 2, 3, 4, or 5.