Short Quiz

Question 1 of 5

NCERT Exemplar

The zeroes of the quadratic polynomial \(x^2+k x+k, k \neq 0\),

A cannot both be positive B cannot both be negative C are always unequal D are always equal

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Question 2 of 5

NCERT Exemplar

If the zeroes of the quadratic polynomial \(x^2+(a+1) x+b\) are 2 and -3 , then

A \(a=-7, b=-1\) B \(a=5, b=-1\) C \(a=2, b=-6\) D \(a=0, b=-6\)

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Question 3 of 5

NCERT Exemplar

If one of the zeroes of the cubic polynomial \(x^3+a x^2+b x+c\) is -1, then the product of the other two zeroes is:

A b - a + 1 B b - a - 1 C \(a-b+1\) D a \(-b-1\)

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Question 4 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 5 of 5

NCERT Exemplar

If the zeroes of the quadratic polynomial \(a x^2+b x+c, a \neq 0\) are equal, then:

A c and a have opposite signs B c and b have opposite signs C c and a have the same sign D c and b have the same sign

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Class 6