Use the distributive property to write the sum as a product.
? a - 
? b + 
? 8
A. 
(a - b - 8)
B. 
(a - b + 8)
C. 
(a + b + 1)
D. 
(a - b + 56)
Answer: B
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Factor by grouping.15a3 + 6a2b - 20ab2 - 8b3
A. (15a2 - 4b2)(a + 2b) B. (3a2 + 4b2)(5a - 2b) C. (3a2 - 4b2)(5a + 2b) D. (3a2 - 4b)(5a + 2b)
Write a system of inequalities that describes the possible solutions to the problem.The Acme Class Ring Company designs and sells two types of rings: the VIP and the SST. The company can produce up to 140 rings each day, using up to 350 total man-hours of labor. It takes 5 man-hours to make one VIP ring and 7 man-hours to make one SST ring. Let x represent the number of VIP rings, and let y represent the number of SST rings. Including the system inequalities 
and 
, find the remaining inequalities that best describe this company's ring production.
A. x + y ? 140, 7x + 5y ? 350 B. x + y ? 140, 5x + 7y ? 350 C. x ? 140, y ? 140, 7x + 5y ? 350 D. x ? 140, y ? 140, 5x + 7y ? 350
Find the vertices of the hyperbola.  figure 1.png)
 figure 2.png)
Factor when possible.4x2 + 49
A. (2x + 7)2 B. (2x + 7)(2x - 7) C. (2x - 7)2 D. Prime