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What is the coefficient of x^3 in a polynomial 6x^4 + 3x^2 + 8x + 5?(a) 6(b) 3(c) 8(d) 0I got this question by my school teacher while I was bunking the class.Question is taken from Polynomials Basics topic in chapter Polynomials of Mathematics – Class 9

Answer»

Correct answer is (d) 0

The EXPLANATION: Coefficient is the NUMBER which is multiplied with respective variable.

In the given POLYNOMIAL 6x^4 + 3x^2 + 8x + 5, there is not an expression containing x^3. So we can write 6x^4+ 3x^2+8x+5 as 6x^4 + 0x^3 + 3x^2 + 8x + 5. We can SEE that 0 is multiplied with expression x^3, so coefficient of x^3 is 0.



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