Factor by grouping.3a + 3n - a2 - an
A. (a - n)(3 + a)
B. (a + n)(3 - n)
C. (a - n)(3 - a)
D. (a + n)(3 - a)
Answer: D
Mathematics
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Mark the indicated points.-
, 4, 
, -5
A. 
B. 
C. 
D. 
Mathematics
Refer to the right triangle ABC with C = 90°.Assuming that a = 6 and c = 10, find b.
A. 5 B. 8 C. 7 D. 9
Mathematics
Solve the equation.x(x - 1) = 20
A. {-4, -5} B. {-4, 5} C. {4, -5} D. {4, 5}
Mathematics
Simplify. Assume that all variables represent positive real numbers.5
+ 3
A. 8
B. 24
C. 15
D. 8
Mathematics