Solve the quadratic equation using the square root property. Express imaginary solutions in a + bi form.(y + 7)2 = -3
A. {
- i
}
B. {7 ± i
}
C. {-7 ± i
}
D. {-7 + i
}
Answer: C
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Write a chain rule formula for the following derivative.
for w = f(x, y, z); x = g(s, t), y = h(s, t), z = k(s)
A. 
= 
+ 
B. 
= 
C. 
= 
+ 
D. 
= 
+ 
Solve the system by the addition method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. {(3, -4)} B. {(0, 0)} C. no solution; ? D. {(0, -1)}
Simplify the polynomial by adding or subtracting, as indicated. Express your answer as a single polynomial in standard form.(2x6 - 20x5 + 16) - (7x6 - 16x5 - 7)
A. -5x6 - 13x5 + 9 B. 14x11 C. -5x6 - 4x5 + 9 D. -5x6 - 4x5 + 23
Perform the indicated operation. Write the result in the form a + bi.(9 + 8i) - (-3 + i)
A. 6 + 7i B. 12 + 7i C. 12 + 9i D. 6 + 9i