Perform the addition or subtraction.(3m2 - 2mn + 2n2) - 
A. -6m2 - 8mn + 8n2
B. 12m2 + 4mn - 4n2
C. -6m2 - 8mn - 4n2
D. -6m2 + 4mn + 8n2
Answer: A
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Write the function in the form y = f(u) and u = g(x). Then find dy/dx as a function of x.y = (-3x + 9)5
A. y = u5; u = -3x + 9; 
= -3(-3x + 9)5
B. y = u5; u = -3x + 9; 
= 5(-3x + 9)4
C. y = u5; u = -3x + 9; 
= -15(-3x + 9)4
D. y = 5u + 9; u = x5; 
= -15x4
Use the rules for exponents to rewrite the expression and then evaluate the new expression. 3-2? 34
A. 
B. 6
C. -729
D. 9
Provide an appropriate response.Indicate whether the following statement is true or false. If two of the rows of a 3 × 3 matrix are identical, but its other row is different, then the determinant of the matrix equals 0.
A. True B. False
Express as a difference of logarithms.ln 
A. 
B. ln (x - 11)
C. ln 11 - ln x
D. ln x - ln 11