Factor completely.2x2 + 8x - xy - 4y
A. (4x - y)(x + 2)
B. (2x - y)(x + 4)
C. (2x - 4)(x + y)
D. (2x + y)(x - 4)
Answer: B
Mathematics
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Find the domain of the expression.
?
?
A. All real numbers x B. All real numbers x such that x ? -8 C. All nonnegative real numbers x such that x < -8 D. All real numbers x such that x < -8 E. All real numbers x such that x ? -8
Mathematics
Find the zero of the linear function.H(x) = -5x + 35
A. -7 B. 30 C. 7 D. -30
Mathematics
Solve the equation.
= 7
A. {9} B. {21} C. {2} D. {10}
Mathematics
Solve the equation.y3 + 6y2 + 9y = 0
A. 3, -3 B. 0, -3 C. 0, 3 D. 0, -3, 3
Mathematics