Factor the expression completely, if possible.49a3b + 42a2b + 9ab

A. ab(7a + 3)(7a - 3)
B. ab(7a - 3)2
C. ab(7a + 3)2
D. Does not factor

Answer: C

Mathematics

Write as a radical expression. Simplify if possible.(5x8y8)1/9

A.
B.
C.
D. 35x⁷²y⁷²

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Mathematics

Provide an appropriate response.Find y' if y = .

What will be an ideal response?

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Mathematics

Solve the system.2w - 6y + z = 10-w + x + 3y - z = -45w - x + 3z = -21 x + 2y - z = -5

A. ( 0, -4 , 1, 5) B. (-4, 1, -3, 0) C. (-8, 0, -4 , 1) D. (4, 3, -3, -1)

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Mathematics

Using the horizontal-line test, determine whether the function is one-to-one.

A. one-to-one B. not one-to-one

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Mathematics