Find the product.[(5x - y) + 3z][(5x - y) - 3z]
A. 25x2 + y2 + 30xz + 6yz - 9z2
B. 25x2 - 10xy + y2 + 30xz + 6yz - 9z2
C. 25x2 + y2 - 9z2
D. 25x2 - 10xy + y2 - 9z2
Answer: D
Mathematics
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Perform long division.
A. x2 - 2x - 5 B. 4x2 + 2x + 5 C. 4x2 + 5 D. x2 + 2x + 5
Mathematics
Solve the system using the inverse of the coefficient matrix of the equivalent matrix equation. 3x + 5y = -102x + 4y = -6
A. (5, -1) B. (1, -5) C. (-5, 1) D. (-1, 5)
Mathematics
Solve the polynomial inequality and graph the solution set on a number line. Express the solution set in interval notation.x2 - 3x - 28 < 0
A. (-?, -4) ? (7, ?)
B. (7, ?)
C. (-4, 7)
D. (-?, -4)
Mathematics
Use the leading-term test to match the function with the correct graph.f(x) = 2x2 + 6
A. 
B. 
C. 
D. 
Mathematics