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If (c=0), what will be the degree of (cx^{10}+(c+4)x^6-3x+2)?

Answer and explanation

Correct answer: (6)

When a parameter is assigned a value, substitute it before finding the degree. The highest-power term counts only if its resulting coefficient is nonzero. This is important because a coefficient such as \(c-2\) can become zero and make the corresponding term disappear. After substitution here, the sixth-power term remains, so option B is correct.

Put \(c=0\) into the expression. The first term becomes \(0x^{10}=0\), while the second coefficient becomes \(c+4=4\). Thus the polynomial reduces to \(4x^6-3x+2\). The greatest exponent of \(x\) in a nonzero term is 6, so its degree is 6. The apparent power 10 cannot be used because its entire term has vanished.

Related tags

PolynomialParameter ZeroDegree

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