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If the roots of the quadratic equation ax^2 + bx + c = 0 are 3 and 4, what is the value of a if b = -7 and c = 12?

A. 1
Posted in:  Basic Operations & Factorization -  Algebra -  Mathematics

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)
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What is the H.C.F. of the polynomials 2x^2 + 4x and 4x^2 + 8x?

A. 2X
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A practical problem states that a car travels 60 km/h and a truck travels 40 km/h. If they start from the same point and travel in opposite directions, how far apart will they be after 2 hours?

B. 120 KM
Posted in:  Linear Equations -  Algebra -  Mathematics

If one root of the quadratic equation x^2 + 3x + k = 0 is twice the other root, what is the value of k?

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