Perform the indicated operation.(7x - 9y)2

A. 49x2 - 126xy + 81y2
B. 49x2 + 81y2
C. 7x2 + 81y2
D. 7x2 - 126xy + 81y2

Answer: A

Mathematics

You might also like to view...

Match the differential equation with the appropriate direction field.y'(x) = 

A.

B.

C.

D.

View
Mathematics

Perform the indicated operation. Simplify if possible.4 + 4

A. 8
B. 8
C. 9
D. 9

View
Mathematics

Solve the problem.The angle between a 90-pound force F and  = 3i + 2j  is 30°. Find the work done by F in moving an object from A to B.

A. ? 324.50 foot-pounds B. ? 389.71 foot-pounds C. ? 281 foot-pounds D. ? 162.25 foot-pounds

View
Mathematics

Solve the inequality. ? 1

A. (-?, -7] ? (5, ?) B. [-7, 5) C. [-7, ?) D. (-?, -7] ? [5, ?)

View
Mathematics