Evaluate (a + b)2 for a = 2 and b = 3.

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Trigonometry hellllllpppppppp asap

Brian, chris, and damien took a math test that had 20 questions. the number of questions brian got right is 14 more than the number of questions chris got right. damien correctly answered 2 less than the number of questions chris answered correctly. if brian and damien have the same score, which statement is true?

Solve 2x+y=3 x+y=5 in substitution method