Short Quiz

Question 1 of 5

CBSE Board Exam 2021

If \(x-1\) is a factor of the polynomial \(p(x)=x^3+a x^2+2 b\) and \(a+b=4\), then

A \(a=5, b=-1\) B \(a=9, b=-5\) C \(a=7, b=-3\) D \(a=3, b=1\)

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Question 2 of 5

CBSE Board Exam 2021

A quadratic polynomial, the product and sum of whose zeroes are 5 and 8 respectively is

A \(k\left[x^2-8 x+5\right]\) B \(k\left[x^2+8 x+5\right]\) C \(k\left[x^2-5 x+8\right]\) D \(k\left[x^2+5 x+8\right]\)

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Question 3 of 5

NCERT Exemplar

The number of polynomials having zeroes as -2 and 5 is

A 1 B 2 C 3 D more than 3

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Question 4 of 5

NCERT Exemplar

If one zero of the quadratic polynomial \(x^2+3 x+k\) is 2 , then the value of \(k\) is

A 10 B -10 C 5 D -5

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Question 5 of 5

NCERT Exemplar

If one of the zeroes of a quadratic polynomial of the form \(x^2+a x +b\) is the negative of the other, then it

A has no linear term and the constant term is negative. B has no linear term and the constant term is positive. C can have a linear term but the constant term is negative. D can have a linear term but the constant term is positive.

Select one option. Answers are shown after the test.

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