Remove the parentheses and simplify, if possible.(3x8 - 7x4 + 7x2 + 5) + (5x7 + 4x4 - 5x)

A. 8x8 - 11x4 + 7x2 - 5x + 5
B. 3x8 + 5x7 - 3x4 + 7x2 - 5x + 5
C. 8x8 - 3x4 + 7x2 - 5x + 5
D. 3x8 + 5x7 + 3x4 + 7x2 - 5x + 5

Answer: B

Mathematics

Write the first four terms of the sequence.an =

A. a₁ = 1, a₂ = , a₃ = , a₄ =
B. a₁ = 5, a₂ = , a₃ = , a₄ =
C. a₁ = , a₂ = , a₃ = , a₄ =
D. a₁ = 1, a₂ = , a₃ = , a₄ =

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Mathematics

The graphs of two functions f(x) and g(x) are given.Solve f(x) ? g(x).

A. x ? -2 or x ? 4 B. -3 ? x ? 3 C. -3 ? x ? 4 D. x ? -3 or x ? 4

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Mathematics

Solve the system of linear equations. 3x + y = 1012x + 4y = 40

A. (5, -5) B. Infinitely many solutions C. (0, 10) D. No solutions

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Mathematics

Express the following in interval notation.10 ? x > -4

A. (-?, -4] ? (10, ?) B. (-?, -4) ? [10, ?) C. (-4, 10] D. [-4, 10)

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Mathematics