Perform the indicated operation and simplify.
- 
A. 
B. 
C. 
D. 
Answer: C
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Factor out the GCF from the polynomial.30x + 10
A. 2(15x + 5) B. 10(3x + 1) C. 5(6x + 2) D. 10(3x)
Use a graphing utility to find or approximate solutions to the equation. If necessary, round your answers to three decimal places.25y2 + 20y + 4 = 0
A. -0.08, -0.5 B. -0.4, -0.4 C. 0.4, 0.4 D. 0.4, -0.4
Find the equation of the parabola corresponding to the given information.The parabola has focus and directrix as shown.
A. y = x2
B. x = - 
y2
C. y = - 
x2
D. y = 
x2
Translate to an equation, then solve.Four times the sum of a number and seven is equal to the number minus the difference of four and the number.
A. 4n + 7 = n - 4 - n, n = -7 B. 4(n + 7) = n - 4 - n, n = -8 C. 4(n + 7) = n - (4 - n), n = -16 D. 4(n + 7) = n - (4 - n), n = -32