Factor using the ac-method.48x2 + 28xy + 4y2
A. prime
B. (12x + 4y)(4x + y)
C. 4(3x - y)(4x - y)
D. 4(3x + y)(4x + y)
Answer: D
Mathematics
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Evaluate the integral.
A. cos-1 
+ C
B. -sin-1 
+ C
C. sin-1 
+ C
D. 
+ C
Mathematics
Decide whether the statement is true or false.The graphs of x2 + y2 = r2 and x2 + y2 = s2 do not intersect if r is not equal to s.
A. True B. False
Mathematics
Show that the equation is not an identity by finding a value of x for which both sides are defined but not equal.cos (x - ?) = cos x
A. 
B. 
C. - 
D. 0
Mathematics
Find the composite function for the given functions.g ? f for f(x) = 4x2 + 5x + 4 and g(x) = 5x - 5
A. 20x2 + 25x + 15 B. 4x2 + 5x - 1 C. 20x2 + 25x + 25 D. 4x2 + 25x + 15
Mathematics