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Mathematics, 21.09.2019 11:00 teethebeast
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a) what did the student do wrong, explain why they are incorrect
b) demonstrate and explain the correct way to answer the question.
lauren says that two expressions 3x+4(2x+5) and 6x +5x +5 are equivalent. simplify the expressions to determine whether or not lauren is correct. substitute a value for x to see if she is right.
students she is correct because both equal 11x +5. i subsisted x=2 and got 27 for both
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a) what did the student do wrong, explain why they are incorrect
b) demonstrate and...
a) what did the student do wrong, explain why they are incorrect
b) demonstrate and...
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