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Which expression is not a polynomial in (x), even though it has an (x^4) term?कौन-सा व्यंजक (x) में बहुपद नहीं है, हालांकि उसमें (x^4) पद है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (x^4+\frac{2}{x}-1)(x^4+\frac{2}{x}-1)
(\frac{2}{x}=2x^{-1}), where the variable has a negative power. One invalid term prevents the whole expression from being a polynomial.(\frac{2}{x}=2x^{-1}) है, जिसमें चर की घात ऋणात्मक है। एक अमान्य पद पूरे व्यंजक को बहुपद नहीं रहने देता।
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