Which expressions can be factored using the difference of squares identity? 32y2 – 822
74 – 400
49.1
14
4a2 - 6485
672 – 81

Which elements in the set below are integers? 12, –3⁄4,√ 25 , –7, √ 5 , 14⁄7, 9 a. 12, √ 25 , –7, 9 b. 12, √ 25 , –7, 14⁄7, 9 c. –3⁄4, 25 , √ 5 ,14⁄7 d. 12, –7, 9

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How many solutions does the nonlinear system of equations graphed below have?