Subtract.6x7 + x4y3 - 5x2y5 + 7xy6 + 4y7 from -3x7 - x4y3 + x3y4 + 5y7
A. -9x7 + x3y4 + 5x2y5 - 7xy6 - y7
B. -9x7 + 2x4y3 + x3y4 - 5x2y5 + 7xy6 - y7
C. -9x7 - 2x4y3 + x3y4 + 5x2y5 - 7xy6 + y7
D. -9x7 + x3y4 - 5x2y5 + 7xy6 + 9y7
Answer: C
Mathematics
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Simplify. Write answers without negative exponents. Assume that all variables represent nonzero real numbers.
-5
A. 
B. 
C. 
D. 
Mathematics
What kind of angle is ?CBD?
(a) obtuse
(b) acute
(c) equilangular
(d) right
Mathematics
Form a polynomial f(x) with real coefficients having the given degree and zeros.Degree: 3; zeros: -4 and 3 - 2i
A. f(x) = x3 - 2x2 + 5x - 52 B. f(x) = x3 - x2 + 11x + 52 C. f(x) = x3 - x2 - 11x + 52 D. f(x) = x3 - 2x2 - 11x + 52
Mathematics
Simplify the complex fraction.
A. 
B. 0
C. -1
D. -9
Mathematics