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Equivalent expressions SAT question
Math · Advanced Math · Easy · Answer it here, explanation included.
Which of the following is equivalent to 
?
ExplanationShow
Choice A is correct. Since 
is a common term in the original expression, like terms can be added: 
. Distributing the constant term 5 yields 
.
Choice B is incorrect and may result from not distributing the negative signs in the expressions within the parentheses. Choice C is incorrect and may result from not distributing the negative signs in the expressions within the parentheses and from incorrectly eliminating the 
-term. Choice D is incorrect and may result from incorrectly eliminating the x-term.
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