Factor the difference of two squares completely.ab4 - 9a3b2
A. ab2(b + 3a)(b - 3a)
B. ab2(b - 3a)2
C. a(b2 + 3ab)(b2 - 3ab)
D. Prime
Answer: A
Mathematics
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Use the fact that 
f(x) = 
f 
to find the limit.
n
A. e-4 B. e-1/8 C. e8 D. e-8
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Find the reference angle for the given angle.95°
A. 5° B. 15° C. 85° D. 95°
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Write the equation without multiplication signs.u = 2 × m + 5 × n
A. u = 10mn B. u = 7 + m + n C. u = 2m + 5n D. u = 5m + 2n
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Determine the slope and the y-intercept. Then graph the equation.y = - 
x + 1
A. m = 
; y-intercept: (0, 1)
B. m = 
; y-intercept: (0, -1)
C. m = - 
; y-intercept: (0, 1)
D. m = - 
; y-intercept: (0, -1)
Mathematics