Solve. 8d2 + 20d + 8 = 0

A. 2, 
B. - 2, - 2
C. , 2
D. - , - 2

Answer: D

Mathematics

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Factor the expression. Express your answer so that only positive exponents occur. x2/5 + x-1/5

A. x-1/5(x3/5 + x) B. x-1/5(x3/5 - 1) C. x-1/5(x3/5 + 1) D. x-1/5(x3/5)

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Mathematics

Determine whether the equation in one variable is linear. + 13 = 7

A. linear B. not linear

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Mathematics

Divide, if possible. Write the answer in simplest form.3 ÷ 

A. 23
B. 25
C. 26
D. 24

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Mathematics

Decide whether the equation defines y as a function of x.x = y2 - 2

A. function B. not a function

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Mathematics