Factor out the negative of the greatest common factor.-18x6y7 + 48x2y5 + 42x4y2
A. -6x2y2(3x4y5 - 8y3 - 7x2)
B. -6x2(3x4y7 - 8y5 - 7x2y2)
C. -x2y2(18x4y5 - 48y3 - 42x2)
D. -6(3x6y7 - 8x2y5 - 7x4y2)
Answer: A
Mathematics
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Decide whether or not the given equation is an identity.
- 
= csc ?t - sin ?t
A. Yes B. No
Mathematics
Solve the linear inequality. Graph the solution set on a number line, and express the solution using interval notation.-6x + 5 > -7x + 12
A. [7, ?)
B. (-?, 7]
C. (17, ?)
D. (7, ?)
Mathematics
Use factoring to find the zeros of the quadratic function. List the x-intercepts of the graph of the function.h(x) = x2 + 3x - 28
A. x = -7, x = 4 B. x = -7, x = 1 C. x = 7, x = -4 D. x = 7, x = 4
Mathematics
Perform the indicated operation.u = 2i + j, v = -7i - 3j, w = i - 8j; Find v - (u - w).
A. -10i + 4j B. -8i + 12j C. -4i - 10j D. -8i - 12j
Mathematics