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If \(p(x)=x^2-3x-28\), what is the distance between the zeroes of \(p(x)\)?

Answer and explanation

Correct answer: 11

Factoring the polynomial gives \(p(x)=(x-7)(x+4)\). Therefore, its zeroes are \(7\) and \(-4\). Their distance is \(|7-(-4)|=11\), so option A is correct. Exam tip: For two real zeroes, calculate the absolute value of their difference to obtain the distance.

Related tags

Polynomials In One VariableZeroes Of A PolynomialFactorisationDistance Between RootsPolynomialsMathematicsClass 10 Mcq

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