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What is the L.C.M. of the polynomials x^2 - 1 and x^2 - 4?

A. (X - 1)(X + 1)(X - 2)(X + 2)
Posted in:  Basic Operations & Factorization -  Algebra -  Mathematics

If the quadratic equation x^2 - 6x + 8 = 0 has roots r1 and r2, what is the sum of the roots?

B. 6
Posted in:  Basic Operations & Factorization -  Algebra -  Mathematics

Which of the following pairs of equations represents parallel lines?

A. Y = 2X + 1 AND Y = 2X - 3
Posted in:  Linear Equations -  Algebra -  Mathematics

A store sells pencils for $0.50 each and erasers for $1.00 each. If a student buys a total of 10 items for $6.00, how many pencils did the student buy?

B. 4
Posted in:  Linear Equations -  Algebra -  Mathematics

What is the H.C.F. of the polynomials 6x^2y and 9xy^2?

A. 3XY
Posted in:  Basic Operations & Factorization -  Algebra -  Mathematics