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Home > CCA2 > Chapter 6 > Lesson 6.1.5 > Problem 6-84
6-84.
On their Team Assessment, Raymond, Sarah, Hannah, and Aidan were given
Raymond and Hannah
(1)
(2)
(3)
(4)
Aidan and Sarah
(1)
(2)
(3)
(4)
Hannah says, “Aidan and Sarah made a mistake in Step 3. Because of the factored 4 they really added 4(9) to complete the square, so they should subtract 36, not just 9." Is Hannah correct? Justify your answer by showing whether the results are equivalent to the original equation.
Start with the end result each team gave and work backwards.
Which one leads back to the original equation?