Factor the trinomial completely. If the trinomial cannot be factored, say it is prime.x2 + 2x - 63
A. (x + 9)(x - 7)
B. (x - 9)(x + 1)
C. prime
D. (x - 9)(x - 7)
Answer: A
Mathematics
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Provide an appropriate response.If the expression 729x3 + 8y3 is written in the form a3 + b3, then 
and 
A. a = 9x; b = 2y B. a = 2x; b = 9y C. a = 2; b = 9 D. a = 9; b = 2
Mathematics
Solve the initial value problem.
= 
+ x, x > 0; y(3) = 3
A. y = - 
+ 
B. y = 
+ 
- 
C. y = 
+ 
D. y = - 
+ 
- 
Mathematics
Find the product.(3x + 7y)(3x - 3y + 1)
A. 9x2 - 9xy + 3x - 21y2 B. 9x2 + 21xy + 3x - 21y2 + 7y C. 9x2 + 12xy + 12y2 D. 9x2 + 12xy + 3x - 21y2 + 7y
Mathematics
Suppose ? is an angle in standard position. Given an equation of the terminal side of ?, give the exact value of the indicated trigonometric function(s). Rationalize denominators if necessary.y = 5x, Quadrant IFind 
A. 
B. 5
C. 
D. 
Mathematics