Factor any difference of two squares, or state that the polynomial is prime. Assume any variable exponents represent whole numbers.81 - 4y2
A. (9 - 2y)2
B. (9 + 2y)(9 - 2y)
C. (9 + 2y)2
D. prime
Answer: B
Mathematics
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Find the standard-form equation of the ellipse centered at the origin and satisfying the given conditions.An ellipse having a focus at (
, 0) and directrix x = 
.
A. 
+ y2 = 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Solve the problem.Find the sum in base four notation.
A. 1031four B. 1001four C. 331four D. 325four
Mathematics
Provide an appropriate response. Determine the type of polynomial, according to the number of terms:a2 + 5a - 2
A. trinomial B. binomial C. monomial D. none of the above
Mathematics
Simplify.
+ 
A. 
B. 
C. 
D. 
Mathematics