Factor completely. If a polynomial cannot be factored, say it is prime.7x4 + 5x2 - 18
A. (7x2 + 2)(x2 - 9)
B. (7x2 - 9)(x2 + 2)
C. prime
D. (7x2 + 9)(x2 - 2)
Answer: B
Mathematics
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Write the imaginary number using i.
A. 2
B. -2i
C. 2i
D. -2
Mathematics
Graph the system of inequalities, and find the coordinates of the vertices.3x - 2y ? -6 x - 1 ? 0
A. 
B. 
C. 
D. 
Mathematics
Find the intercepts of the function f(x).f(x) = x3 + 2x2 - 5x - 6
A. x-intercept: -1; y-intercept: -6 B. x-intercepts: -2, 1, 3; y-intercept: -6 C. x-intercept: -3; y-intercept: -6 D. x-intercepts: -3, -1, 2; y-intercept: -6
Mathematics
Solve the problem using the elimination method.Two angles are supplementary, and one is 40° more than three times the other. Find the smaller angle.
A. 145° B. 75° C. 105° D. 35°
Mathematics