Factor the polynomial f(x). Then solve the equation f(x) = 0.f(x) = x3 + 5x2 - 9x - 45
A. (x + 3)(x - 3)(x + 5) ; -3, 3, -5
B. (x - 3)(x + 3)(x - 5) ; -3, 3, -5
C. (x + 3)(x + 3)(x - 6) ; 3, -3, 6
D. (x - 3)(x + 3)(x - 5) ; 3, -3, 5
Answer: A
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Find the range of the set of numbers.3.2, 5.8, 6.8, 7.8, 6.4
A. 7.8 B. 4.6 C. 6 D. 3.2
Solve the equation by completing the square.x2 - 8x - 7 = 0
A. {4 - 
, 4 + 
}
B. {8 - 
, 8 + 
}
C. {-4 - 
, -4 + 
}
D. {4 - 
, 4 + 
}
A boy is standing on a flat field and tosses his ball toward a second boy standing at the other end of the field. The path of the ball is a parabola, and the equation of the path is 
Based on this information, answer the question.How many x-intercepts are there on the graph of the equation?
A. 2 B. 0 C. 1 D. None of the above
Provide an appropriate response.Which of the following properties do not hold for matrix multiplication?(i)Associative property(ii)Commutative property(iii)Distributive property(iv)Zero-factor property (If the product of two matrices is a zero matrix, then one of the factors must be a zero matrix.)
A. (ii) B. (ii), (iv) C. (i), (iii) D. None. All of the properties hold.