Simplify.
A. 128
B. 16
C. 17
D. Not a real number
Answer: B
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Simplify the algebraic expression. [4x2 + (10x2 + 1)] - [-(-7x2 - (-4 - 5x2)) + 8x2]
A. 4x2 + 5 B. 24x2 - 3 C. -26x2 - 5 D. 8x2 - 3
Explain how to obtain the graph of the second function from the graph of the first function, or state that the graphs are identical.y = cos x, y = cos (-x + 2?)
A. Translate the graph 2? units to the right, and then reflect it over the x-axis. B. Translate the graph 2? units to the left, and then reflect it over the x-axis. C. The graphs are identical. D. Reflect the graph over the x-axis.
Provide an appropriate response.Fill in the blank to complete the statement. In order for a matrix to have a determinant, it must be 
matrix.
A. an augmented B. a square C. a rectangular D. a minor
Multiply. Express the answer as a single polynomial in standard form.(9x - 1)(x2 - 5x + 1)
A. 9x3 + 46x2 - 14x + 1 B. 9x3 - 46x2 + 14x - 1 C. 9x3 - 44x2 + 4x - 1 D. 9x3 - 45x2 + 9x + 1