Test Series-07

### Instructions

• Your test contains 10 multiple choice questions with only one answer
• This is 30 min test.Please make sure you complete it in stipulated time
• You can Finish this test any time using 'Submit' button.
• Once finished you get a chance to review all question with correct answers and their solutions.

1.Which of the following is incorrect?
(a+b)2=a2+b2+2ab
a3+b3=(a+b)3-3ab(a+b)
a2-b2=(a-b)2-2ab
None of these

2) The sum of the zeroes of the quadratic polynomial p(x)= x2-3x+2=0?
-3
3
2
-2

3. Which of the following is incorrect?
The graph of linear polyonomial is straight line
The graph of quadratic polynomial is parabola
The graph of cubic polynomail cut the x-axis at max three points
None of these

4. If the graph of the quadratic polynomail does not cut the x-axis at any point then?
There are two zeroes of the polynomail
There is 1 zero of the polynomail
There is no zeroes of the polynomial
None of these

5. p(x)=x2-(2+k)x+2k. If x=3 is the zero ,then the value of k?
3
2
1
5

6. p and q are the zeroes of the polynomail p(x)=ax2+bx+c.
The polynomial g(x) whose zeroes are 1/p and 1/q will be?
g(x)=ax2+cx+b
g(x)=cx2+bx+a
g(x)=bx2+ax+c
g(x)=cx2+ax+b

7. Which of these are false?
The polynomail s(x) =x2 +81 does not have any zeroes
The polynomail p(x)=7 is zero degree polynomial
Graph of the polynomial q(x)=x2-16x+64 will meet the xaxis at one point only
Zero polynomial has zero degree

8. The polynomail q(x) =x4-6x3-26x2+138x-35 has Four zeroes.
Two are given as 2+√3 and 2-√3. Find the other two?
-3,7
5,7
3,7
-5,7

9. P(x)=x3-6x2+11x-6 and g(x) =x2-5x+6
Then p(x) =q(x) g(x) +r(x)
r(x) =0
q(x)= (x-5)
r(x) =(x-7)
q(x) =(x-6)

10.Two statement
Statement A: A polynomail of n degree has atmost n zeroes
Statement B: A binomial can be of any degree

A is correct only
B is correct only
A and B both are correct
A and B both are incorrect