Factor completely using the grouping method to factor trinomials. If unfactorable, indicate that the polynomial is prime.18y2 + 81y - 45
A. (18y - 9)(y + 5)
B. 9(2y - 1)(y + 5)
C. 9(2y + 1)(y - 5)
D. prime
Answer: B
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Expand using the binomial theorem.(x - 9y)5
A. x5 - 45x4y + 810x3y2 - 7290x2y3 + 32,805xy4 - 59,049 B. x5 - 45x4y + 1620x3y2 - 14,580x2y3 + 32,805xy4 - 59,049y5 C. x5 - 45x4y + 1620x3y2 - 14,580x2y3 + 32,805xy4 - 9y5 D. x5 - 45x4y + 810x3y2 - 7290x2y3 + 32,805xy4 - 59,049y5
Determine if the equations in the given pair are equivalent. Each equation has only one solution.6x - 16 = 4(x - 4) and x = -16
A. Equivalent B. Not equivalent
Solve the inequality. Write the solution set in interval notation.x2 - 7x + 12 ? 0
A. [4, ?) B. (-?, 3] ? [4, ?) C. [3, 4] D. (-?, 3]
Fill in the blank.Half the diameter of a circle is its _____________.
A. radius B. circumference C. area D. diagonal