Factor the perfect square.x4 - 6x2 + 9
A. (x - 3)(x + 3)
B. (x2 + 3)2
C. (x - 3)2
D. (x2 - 3)2
Answer: D
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Find the largest open interval where the function is changing as requested.Increasing f(x) = x2 - 2x + 1
A. (-?, 1) B. (-?, 0) C. (1, ?) D. (0, ?)
Simplify using the product-to-power rule.(-2x5)4
A. -16x20 B. -16x9 C. 16x9 D. 16x20
Subtract and write the resulting polynomial in descending order of degree.(8x5 - 6x4 + 7x2 - 8x + 10) - (13x5 + x3 - 4x2 - 3x + 1)
A. -5x5 - 6x4 + x3 + 10x2 + 5x - 9 B. -5x5 - 6x4 + x3 + 3x2 - 11x + 11 C. 5x5 - 6x4 - x3 - 4x + 10 D. -5x5 - 6x4 - x3 + 11x2 - 5x + 9
Write the equation in the standard form ax2 + bx + c = 0. Then identify the values of a, b, and c. Do not actually solve the equation.9x2 + 7x - 16 = 0
A. a = 9, b = 7, c = 16 B. a = 9, b = 7, c = -16 C. a = 9, b = -7, c = 16 D. a = 9, b = -7, c = -16