Solve.x4 - 31x2 = 180
A. -6, 6, -i
, i
B. -36, 5
C. - 
, 
, -6i, 6i,
D. 6, i
Answer: A
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Which of the following is not true about similar triangles??
A.
?Similar triangles do not necessarily have the same size.
B.
?Similar triangles have the same shape.
C.
?All angles in one triangle are not necessarily the same as in the similar triangle.
D.
?All angles in both triangles are congruent.
E.
?If a, b, and c are sides of one triangle, and a', b', c' are corresponding sides of the other triangle, then 
Simplify by combining pairs of like terms.-5a + 19a - 4 - 8
A. -24a - 12 B. -14a + 4 C. 14a - 12 D. 14a + 4
Multiply.
2
A. 49x2 - 2x + 
B. 49x2 - 2x
C. 49x2 - 
D. 49x2 - 
x - 
Find the amount that results from the investment.$12,000 invested at 9% compounded quarterly after a period of 4 years
A. $17,131.46 B. $16,754.48 C. $16,938.98 D. $5131.46