Solve by completing the square. Give exact solutions. Simplify radicals and reduce.x2 + 3x - 9 = 0
A. 
B. 
C. -3 ± 3
D. 
Answer: B
Mathematics
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Determine whether the sequence is geometric.an = 6n + 6
A. Geometric B. Not geometric
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Divide and simplify.- 
÷ 
A. 
B. 15
C. 
D. 
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Simplify.12 ? 10 + 5 ? 15
A. 1875 B. 195 C. 2700 D. 1020
Mathematics
Solve the equation after making an appropriate substitution.x4 - 50x2 + 49 = 0
A. {-49, 49} B. {-1, 1, -7, 7} C. {-50, 50} D. {-7, 7}
Mathematics