Factor completely. If prime, so state.7x2 + 56x + 21x + 168
A. 7(x + 8)(x + 3)
B. 7(x + 8)(x - 3)
C. (7x + 56)( x + 3)
D. (7x + 21)(x + 8)
Answer: A
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Solve the problem.A parallelogram has a base of length x + 7 and a height of x + 2 and has an area of 50 square units. Find the base and height of the parallelogram. (A = BH)
A. height = 2 units; base = 25 units B. height = 1 unit; base = 50 units C. height = 6.25 units; base = 8 units D. height = 5 units; base = 10 units
Find the root. Assume that variables represent nonnegative values.-
A. 4x3 B. 4x C. -64x D. -4x
Solve.The profit made when t units are sold is given by 
for t > 0. Determine the values of t for which P < 0 (a loss is taken).
A. (-?, 12) ? (19, ?) B. (0, ?) C. [12, 19] D. (12, 19)
Answer the question.Use the equation 2x2 + 5x = c to explain how to solve a quadratic equation by completing the square.
What will be an ideal response?