Algebraic Expressions and Identities-MCQ

1.  Which of the following is the numerical coefficient of x²y²?

        I.   0

       II.   1

      III.   x²

      IV.   y²

2.  Which of the following is the numerical coefficient of -5xy?

        I.   5

       II.   -x

      III.   -5

      IV.   -y

3.  pqr is what type of polynomial?

        I.   Monomial

       II.   Binomial

      III.   Trimonial

      IV.   None of these

4.  The value of x² - 5 at x= -1 is-

        I.   -2

       II.   -1

      III.   -4

      IV.   -5

5.  a²-b² is a product of

        I.   (a+b)(a-b)

       II.   (a+b)(a+b)

      III.   (a-b)(a-b)

      IV.   None of these

6.  Which of the following is the value of (x+ 1/x)²?

        I.   x² + 1/x²

       II.   x² - 1/x²

      III.   x² + 1/x² + 2

      IV.   x²+ 1/x² + 2x

7.  Which of the following is obtained by subtracting x²-y² from y² - x²?

        I.   -2(x²-y²)

       II.   -2(x² + y²)

      III.   2(x²+ y²)

      IV.   2(x²- y²)

8.  What degree does x³ - x²y² - 8y²+ 2 have?

        I.   2

       II.   3

      III.   4

      IV.   7

9.  What is the value of 5x²⁵ - 3x³² + 2x^-12 at x=1?

        I.   0

       II.   2

      III.   4

      IV.   None of these

10.  What is the product of (x+a) and (x+b)?

        I.   x²+ (a-b)x + ab

       II.   x² + (a+b)x - ab

      III.   x² + (a+b)x - ab

      IV.   x² + (a+b)x + ab

        1.    II

        2.    III

        3.    I

        4.    III

        5.    I

        6.    III

        7.    I

        8.    III

        9.     III

        10.  I