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Class 10MathematicsPolynomialsPolynomials in one variableEasy
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What is the value of the polynomial \(x^3-1\) when \(x=1\)?

Answer and explanation

Correct answer: 0

Substituting \(x=1\) gives \(x^3-1=1^3-1=1-1=0\). Therefore, the correct answer is 0. Option B represents only the value of \(1^3\) and ignores the subtraction of 1. Exam tip: Substitute the given value into the complete polynomial before simplifying.

Related tags

PolynomialsPolynomials-In-One-VariableSubstitutionZeroEasyPolynomials In One VariableMathematicsClass 10 Mcq
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  1. 1If (p(x)=x²−8x+10), what are its zeroes?
  2. 2If p(x) = 2x² − 4√2x + 4, what is the sum of its zeroes?
  3. 3If the sum of zeroes is 2√5 and the product is 4, which is a monic quadratic polynomial?
  4. 4If √2 and √8 are zeroes of a quadratic polynomial, what is the sum of the zeroes?
  5. 5If p(x) = x² − 2√2x + 2, which is the correct factorized form of p(x)?
  6. 6Which polynomial has rational coefficients and zeroes 1 + √2 and 1 − √2?
  7. 7Which option is the simplified form of (x^8 - 81) / (x^4 - 9), where x^4 ≠ 9?
  8. 8Which expression is a polynomial in one variable (x)?
  9. 9What is the degree of the polynomial p(x) = 4x^3 − 2x + 9?
  10. 10What is the constant term of the polynomial \(7x^2+5x-11\)?
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