Polynomials Questions and answers

  1. Elementary Mathematics
    1. Quadratic Equations
    2. Simplification
    3. Area and perimeter
    4. Volume and surface area
    5. Geometry
    6. Trigonometry
    7. Polynomials
    8. Height and Distance
    9. Simple and Decimal fraction
    10. Indices and Surd
    11. Logarithms
    12. Trigonometric ratio
    13. Straight lines
    14. Triangle
    15. Circles
    16. Quadrilateral and parallelogram
    17. Loci and concurrency
    18. Statistics
    19. Rectangular and Cartesian products
    20. Rational expression
    21. Set theory
    22. Factorisation
    23. LCM and HCF
    24. Clocks
    25. Real Analysis
1). Which of the following gives the correct factors of \( \Large 4x^{2}- \left(x^{2}-3\right)^{2} \)?
I. \( \Large \left(x-2\right) \left(x-1\right) \)
II. \( \Large \left(x-1\right) \left(x+3\right) \)
III. \( \Large \left(3-x\right) \left(x+1\right) \)
IV. \( \Large \left(2x-1\right) \left(2x+3\right) \)
Select the correct answers from the codes given below :

A). I and III
B). II and IV
C). II and III
D). I, II and III
2). The remainder when \( \Large 2x^{3}-3x^{2}+4x-1 \) is divided by x - 1 is
A). -10
B). 2
C). 1
D). 10
3). If \( \Large x+\frac{1}{x}=\sqrt{3} \), then \( \Large x^{3}+\frac{1}{x^{3}} \) is equal to
A). 0
B). 1
C). 3
D). \( \Large \left(x+1\right) \)
4). One of the factors of \( \Large x^{3}+6x^{2}+11x+6 \) is
A). \( \Large \left(x-\frac{1}{2}\right) \)
B). \( \Large \left(x+\frac{1}{2}\right) \)
C). \( \Large \left(x-1\right) \)
D). \( \Large \left(x+1\right) \)
5). If polynomial \( \Large x^{3}-3x^{2}+kx+42 \) is divisible by \( \Large x+3 \), then value of k will be
A). 4
B). 14
C). -4
D). -14


6). H.C.F. and L.C.M. of polynomials \( \Large \left(x-2\right) \), \( \Large x^{2}-4 \) are respectively
A). 1, \( \Large x - 2 \)
B). \( \Large x - 2 \), 8
C). \( \Large x - 2 \), \( \Large x + 2 \)
D). \( \Large x - 2 \), \( \Large x^{2}-4 \)
7). If \( \Large a+b+c=0 \), thena \( \Large a^{3}+b^{3}+c^{3} \) is equal to
A). \( \Large a^{2} \left(b+c\right)+b^{2} \left(c+a\right)+c^{2} \left(a+b\right) \)
B). \( \Large 3 \left(b+c\right) \left(c+a\right) \left(a+b\right) \)
C). \( \Large 3 abc \)
D). \( \Large 6 a^{2}b^{2}c^{2} \)
8). If \( \Large a^{m^{n}}= \left(a^{m}\right)^{n} \), then the value of m is
A). n
B). \( \Large \frac{n}{n^{n-1}} \)
C). \( \Large \frac{1}{n^{n-1}} \)
D). \( \Large n^{\frac{n-1}{n}} \)
9). Value of \( \Large \left(X^{b-c}\right)^{b+c},\ \left(X^{c-a}\right)^{c+a},\ \left(X^{a-b}\right)^{a+b} \) is
A). 0
B). X
C). 1
D). X+1
10). If \( \Large 2^{x}=4^{y}=8^{z} and \frac{1}{2x}+\frac{1}{4y}+\frac{1}{6z}=\frac{24}{7} \), then value of z is
A). \( \Large \frac{7}{16} \)
B). \( \Large \frac{7}{32} \)
C). \( \Large \frac{7}{48} \)
D). \( \Large \frac{7}{46} \)
Go to :
Total Pages : 9