Factor the trinomial by grouping, or state that the trinomial is prime.7x2 - 15xy - 18y2

A. prime
B. y(7x + 6)(x - 3)
C. (7x + 6y)(x - 3y)
D. (7x + 3y)(x - 6y)


Answer: C

Mathematics

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Find the largest open interval where the function is changing as requested.Decreasing f(x) = - 

A. (-?, 3) B. (-?, -3) C. (-3, ?) D. (3, ?)

Mathematics

Factor the polynomial completely. If the polynomial cannot be factored, say it is prime.6(x + 13) - y(x + 13)

A. (x - 13)(y - 6) B. prime C. (x + 13)(6 + y) D. (x + 13)(6 - y)

Mathematics

Solve the equation.2 + log3(2x + 5) - log3 x = 4

A.
B.
C.
D.

Mathematics

Perform the indicated operation and reduce to lowest terms. - 

A.
B.  
C.  
D.  

Mathematics