Simplify the polynomial by combining like terms.-19x4 + 10x3y3 + 14 - 18y3x3 - 3x4 - 3
A. cannot be simplified
B. 57x4 - 180x3y3 - 42
C. -16x4 + 28x3y3 - 17
D. -22x4 - 8x3y3 + 11
Answer: D
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Find all the second order partial derivatives of the given function.f(x, y) = 
A. 
= 
; 
= - 
; 
= 
= 
B. 
= - 
; 
= 
; 
= 
= 
C. 
= - 
; 
= 
; 
= 
= 
D. 
= - 
; 
= 
; 
= 
= 
Match the equation of the ellipse with the appropriate description.4x2 + 25y2 = 2500
A. x-intercepts (100, 0), (-100, 0); y-intercepts (0, 625), (0, -625) B. x-intercepts (25, 0), (-25, 0); y-intercepts (0, 10), (0, -10) C. x-intercepts (10, 0), (-10, 0); y-intercepts (0, 25), (0, -25) D. x-intercepts (625, 0), (-625, 0); y-intercepts (0, 100), (0, -100)
Evaluate the square root. If the answer is not a real number, state so.
A. 
B. 
C. 
D. 0
Find the value of the exponential expression.162
A. 512 B. 18 C. 32 D. 256