Complete the square. Then write the trinomial square in factored form.x2 + 9x

A. x2 + 9x; 2
B. x2 + 9x + 81; 2
C. x2 + 9x + 2
D. x2 + 9x + 2


Answer: C

Mathematics

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A. 60 B. 15 C. 9 D. 56

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A.   +  
B.  +  +  + 
C.  +   +  
D.    + 

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Solve by substitution and check.x - y = -5 x = 2y

A. (-5, 10) B. (-10, -5) C. (5, 10) D. (-5, -10)

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