Determine which factoring technique is appropriate for the given polynomial.x2 + 121

A. sum of squares
B. factoring by grouping
C. sum of cubes
D. factor out GCF


Answer: A

Mathematics

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Solve the quadratic equation by completing the square.25x2 + 40x + 12 = 0

A.
B.
C.
D.

Mathematics

Solve the problem.A survey of 128 college students was done to find out what elective courses they were taking. Let A = the set of those taking art, B = the set of those taking basketweaving, and C = the set of those taking canoeing. The study revealed the following information.n(A) = 45n(A ? B) = 12n(B) = 55n(A ? C) = 15n(C) = 40n(B ? C) = 23n(A ? B ? C) = 2How many students were not taking any of these electives?

A. 36 B. 46 C. 38 D. 10

Mathematics

Evaluate the expression.-4/3

A.
B. not a real number
C. - 
D.

Mathematics

Solve the inequality. Express your answer using interval notation.-3x + 5 ? -4x + 7

A. [2, ?)

B. [12, ?)

C. (-?, 2]

D. (-?, 2)

Mathematics