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Chapter 2 Class 10 Polynomials
Serial order wise

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

(a) k[x 2 - 8x + 5]Β 

(b) k[x 2 + 8x + 5]Β 

(c) k[x 2 - 5x + 8]Β 

(d) k[x 2 + 5x + 8]

This question is similar from Question 2 - CBSE Class 10 - Sample Paper for 2021 Boards - Maths Basic

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Transcript

Question 3 A quadratic polynomial, the product and sum of whose zeroes are 5 and 8 respectively is (a) π‘˜[π‘₯^2βˆ’8π‘₯+5] (b) π‘˜[π‘₯^2+8π‘₯+5] (c) π‘˜[π‘₯^2βˆ’5π‘₯+8] (d) π‘˜[π‘₯^2+5π‘₯+8] The quadratic polynomial is x2 βˆ’ (Sum of roots)x + Product of roots Putting values π‘₯^2βˆ’5π‘₯+8 We can multiply any constant to this polynomial So, required quadratic polynomial is π’Œ(𝒙^πŸβˆ’πŸ“π’™+πŸ–" " ) So, the correct answer is (c)

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