CBSE Questions for Class 9 Maths Polynomials Quiz 5 - MCQExams.com

What is the degree of the polynomials $$\sqrt 7 $$?
  • $$\dfrac{1}{2}$$
  • $$5$$
  • $$2$$
  • $$0$$
The expression with only constant is
  • $$y + 3$$
  • $$3x$$
  • $$5(21 - 7)$$
  • $$5 - 5n$$
The zero of polynomial $$9x+2$$ is
  • $$\cfrac{-2}{9}$$
  • $$\cfrac{1}{9}$$
  • $$\cfrac{2}{9}$$
  • $$\cfrac{-1}{9}$$
State true or false:
 If 5 is constant and y is variable, then 5y and 5+y are variables.
  • True
  • False
The degree of the polynomial $$3x^3y-5xy^4-2x+1$$ is
  • 5
  • 4
  • 3
  • 2
A cubic polynomial has at most
  • $$1$$ zeroes
  • $$2$$ zeroes
  • $$3$$ zeroes
  • $$4$$ zeroes

If $$p(x) = x^2 -2 \sqrt {2}x + 1$$, then $$p(2\sqrt 2)$$ is equal to
  • $$0$$
  • $$1$$
  • $$4\sqrt 2$$
  • $$8\sqrt 2 + 1$$
Zero of the polynomial $$p( x) = 3x +5$$ is :
  • $$0$$
  • $$-5$$
  • $$\dfrac{5}{3}$$
  • $$\dfrac{-5}{3}$$
Find the value of the polynomial $$(3x^{ 3 })\times (4x^{ 2 })+7{ x }^{ 5}$$ when $$x=3$$.
  • $$4617$$
  • $$4613$$
  • $$4611$$
  • $$4619$$
If $$p(y) = (y + 2) (y - 2)$$. Find the value of $$p(1)$$.
  • $$2$$
  • $$0$$
  • $$-3$$
  • $$3$$
If  $$p(x)=x^{2}-4x+3,$$. Evaluate $$p(2)-p(-1)+p\left ( \dfrac{1}{2} \right )$$.
  • $$\dfrac{-5}{4}$$
  • $$\dfrac{ 5}{4}$$
  • $$\dfrac{-31}{4}$$
  • $$\dfrac{ 31}{4}$$

Degree of the polynomial $$4x^4 + 5x + 7$$, is
  • 4
  • 5
  • 2
  • 7

The value of the polynomial $$5x^3-  4x^2 + 3$$ when $$x = -1$$ is
  • $$-6$$
  • $$6$$
  • $$2$$
  • $$-2$$

Zero of the zero polynomial is:
  • $$0$$
  • $$1$$
  • Any real number
  • Not defined
Find $$p(0)$$ for the following polynomial :
$$p(x) =10x -4x^2-3$$
  • $$3$$
  • $$-3$$
  • $$1$$
  • $$0$$

If $$p(x) = x + 3$$, then $$p(3) + p(-3)$$, is equal to
  • $$3$$
  • $$2$$
  • $$0$$
  • $$6$$
What are the zero(s) of the polynomial $$p(x)= 4x^2 -49$$ ?
  • $$\frac{7}{2},\frac{7}{2}$$
  • $$+\frac{7}{2},-\frac{7}{2}$$
  • $$\frac{2}{7},-\frac{2}{7}$$
  • $$0,+\frac{7}{2},-\frac{2}{7}$$
Simplify: $$(l + m)^2-  4lm$$
  • $$(l -m)^2$$
  • $$4l^2m^2$$
  • $$(l+2m)^2$$
  • $$(l-2m)^2$$
If $$f(x) =2x^{2} - x + 1$$ and $$g(x) = x^{3} - 3x + 1$$, then the value of $$f(1) + g(-1)$$ is
  • $$2$$
  • $$3$$
  • $$4$$
  • $$5$$
8 is a polynomial of degree :
  • 1
  • $$\dfrac{1}{2}$$
  • 8
  • 0
If the two zeroes of a quadratic polynomial $$ax^{2} +

bx + c$$ are negative, which of the following statements holds true?
  • a and c are of opposite signs.
  • a, b and c have the same sign.
  • a and b are of opposite signs.
  • b and c are of opposite signs.
Zero of a polynomial is always zero.
  • True
  • False
  • Cannot be determined
  • None of the above
If $$f(x) = 2x^3 - 13x^2 +17 x+12$$, then find out the value of $$f(-2)$$
  • $$-90$$
  • $$-85$$
  • $$-70$$
  • $$-55$$
The zero polynomial has :
  • One zero
  • two zeroes
  • infinite zeroes
  • No zero
Evaluate (using formulae): $$\displaystyle \frac{2.43 \times 2.43 - 2 \times 2.43 \times 1.67 +1.67 \times 1.67}{2.43 - 1.67}$$
  • $$0.76$$
  • $$0.55$$
  • $$1$$
  • $$1.4$$
Use the identity $$ (a+b)(a-b) = a^2-b^2$$ to evaluate:
$$9.8\times 10.2 $$.
  • $$98.96$$
  • $$99.86$$
  • $$98.86$$
  • $$99.96$$
Use the identity $$ (a+b)(a-b)=a^2-b^2$$ to evaluate:
$$4.6\times 5.4 $$.
  • $$24.84$$
  • $$25.24$$
  • $$24.94$$
  • $$25.84$$
Simplify : $$\displaystyle \left(\frac{3}{2}x - 0.45y\right)^2$$
  • $$2.25x^2-1.35xy+0.2015y^2$$
  • $$2.15x^2-1.35xy+0.2025y^2$$
  • $$2.25x^2-1.35xy+0.2025y^2$$
  • $$2.25x^2-1.25xy+0.2025y^2$$
Use the identity $$ (a+b)(a-b) = a^2-b^2$$ to evaluate:
$$8.3\times 7.7 $$.
  • $$63.91$$
  • $$63.81$$
  • $$64.91$$
  • $$64.21$$
Use the identity $$ (a+b)(a-b) = a^2-b^2$$ to evaluate:
$$103\times 97 $$.
  • $$8881$$
  • $$9991$$
  • $$9981$$
  • $$9891$$
0:0:1


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