math reviewer for periodical exam

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  • 7/30/2019 Math Reviewer for Periodical Exam

    1/2

    ___________________1. It is a quotient of two polynomials.___________________2. A method of dividing a factor in the numerator by the same factor in the denominator.

    ___________________3. A fraction whose numerator, denominator or both have fractions too.___________________4. An equation containing rational expressions

    ___________________5. Equation where the exponent is unknown___________________6. A rule that states that, when zero is used as an exponent, it is equal to 1.

    ___________________7. A root which does not satisfies a given equation

    ___________________8. The only number that cant be used as a denominator

    ___________________9. It is the expression which is divisible by each of the given rational expression

    ___________________10. It is the smallest number which can be divided by given numbers

    _____11. Cancellation uses a division operation.

    _____12. All real numbers, except zero, can be a numerator.

    _____13. Negative exponents arent yet simplified. They need to invert the base in order to get the positive exponent

    _____14. In the rational equation

    , Q can be equal to all reals._____15. Inverting the base is equivalent in changing the sign of the base itself.

    Column A Column B

    _____16.

    a.

    _____17.

    b. 64x6

    _____18.

    c. 2x3

    _____19. LCM: d.

    _____20.

    e. 2 (x + 3)

    _____21. [(2x)3]2 f. 3_____22.

    g.

    _____23.

    h.

    _____24. i. _____25. LCM: j. x10

    k.

    l. 6x3y2

    26. Which of the following is equivalent to x? (a.

    b.

    c.

    d.

    )

    27. Which of the following is not equivalent to x? (a.

    b.

    c.

    d. a and b)

    28. What value of x is allowed in

    ? (a. x = 7 b. x 7 c. y = 3 d. y 3

    29. What value of y is not allowed in

    ? a. y 3 b. y = 4 c. y = 3 d. y 4

    30. The solution for + x = 7 is ___. (a.

    b.

    c.

    d.

    )

    31. The LCD of

    is ___. (a. 78 b. 52 c. 26 d. 47)

  • 7/30/2019 Math Reviewer for Periodical Exam

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    32. The LCD of 4x2 and 6x3 is ___. (a. 12x3 b. 24x5 c. 10x6 d. 5x5)

    33. What law suggest that (bx)m = bmxm? (a. IV b. III c. II d. I)

    34. Simplify

    . (a. x-2/y-2 b. x2/y2 c. y-2/x-2 d. y2/x2)

    35. Simplify (5/6)/(7/8). (a. 20/21 b. 21/20 c. 35/48 d. 48/35)

    36. The expression to be subtracted from 1/x to get 2x is (a.

    b. 2x c. 1 d. x)

    37. The factored form of x2 4. (a. (x+y)(x-y) b. (x+y)2 c. (x-y)2 d. (x-4)2)38. Simplify m-1x-2. (a. 1/m-1x-2 b. mx2 c. 1/mx2 d. m-1x2)

    39. Simplify 4xy2

    z0

    . (a. 4xyz b. 4x2

    zy c. 4xy2

    d. 4x2

    y2

    )40. Solve:

    . (a. z2/x2y2 b. z2/y3 c. z3 d. x4y3)

    A. Rational expressions:

    41.

    42.

    B. Work Problems:43 44.Maria can paint the whole room for six hours. Jely can make it also painted for five hours. If they

    will do it altogether, how long would it take?

    Equation: ____________________________________________

    Answer: ________________________________________

    45 46. Jose can make a box for two hours. Leo can also do it in four hours. If they will do it altogether, how

    long would it take?

    Equation: ____________________________________________

    Answer: ________________________________________

    C. Rational Equations47.

    48.

    37

    D. Negative Exponents49.

    50.