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level: Equality errors

Questions and Answers List

Question	Answer
What mistake was made with the following equation? x⁴=4x	Does not understand the meaning of exponents
What mistake was made with the following equation? x⁴=x+x+x+x	Does not understand the meaning of exponents
What mistake was made with the following equation?<br> 2(x+3)=2x+3	Does not understand the distributive property
What mistake was made with the following equation? 4 + (3 + 2) = 7 + 6	Does not understand commutativity
What mistake was made with the following equation? 3 + 3 × 5 = 6 × 5	Did not follow the order of operations
What mistake was made with the following equation? 3(x - 6) + 5 = 3 x -3	Did not distribute properly
What mistake was made with the following equation? (x-2)(x-2) = x2-4	Did not distribute properly
What mistake was made with the following equation? (x-2)(x+2) = x2-4x-4	Did not distribute properly
What mistake was made with the following equation? 1/2 × (2x - 8) = 4 x - 16	Mixed up half and double
What mistake was made with the following equation? -6(x - 8) = -x - 48	Did not distribute properly