Câu hỏi trắc nghiệm (10 câu):
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- A. P(1) = 10; P(-1) = 2
- B. P(1) = -10; P(-1) = 2
- C. P(1) = 10; P(-1) = -2
- D. P(1) = -10; P(-1) = -2
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- A. \( a = 3;b = 3\)
- B. \( a = \frac{{11}}{2};b = - \frac{4}{3}\)
- C. \( a = - 3;b = - 3\)
- D. \( a = 3;b = - 3\)
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- A. \(\frac{1}{6}\)
- B. \(\frac{-1}{5}\)
- C. - 6
- D. \(\frac{-1}{6}\)
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- A. \( - 3x^2y + \frac{1}{2}{y^2} + xy\)
- B. \( - 3x + \frac{1}{2}{y^2} + xy\)
- C. \( - 3xy + \frac{1}{2}{y^2} + xy\)
- D. \( - xy + \frac{1}{2}{y^2} + xy\)
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- A. \(\frac{1}{2}{x^2} + \frac{1}{4}x{y^2} + \frac{2}{5}{x^2}y\)
- B. \(\frac{3}{2}{x^2} + \frac{1}{4}x{y^2} + \frac{2}{5}{x^2}y\)
- C. \(\frac{1}{2}{x^2} - \frac{1}{4}x^2{y^2} + \frac{2}{5}{x^2}y\)
- D. \(\frac{1}{2}{x^2} + \frac{1}{4}x{y^2} + \frac{2}{5}{x^2}y^2\)
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- A. \(4{(x - y + 2z)^3} -(x - y + 2z)\)
- B. \(4{(x - y + 2z)^3} + 6(x - y + 2z)^2\)
- C. \(4{(x - y + 2z)^2} + 6\)
- D. \(4{(x - y + 2z)^3} + 6(x - y + 2z)\)
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- A. \({x^3} -2x^2+ x + 1\)
- B. \({x^3} - x + 1\)
- C. \({x^3} - 2x + 1\)
- D. \({x^3} -3 x + 1\)
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- A. 110
- B. 230
- C. 12
- D. 31
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- A. \(D=x^{4}+3x^2\)
- B. \(D=x^{3}\)
- C. \(D=x^{4}+x^2-3x+1\)
- D. \(D=x^{4}\)
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- A. \(10{x^4} + 7{x^3} +5{x^2}\)
- B. \(10{x^4} - 7{x^3}+ 5{x^2}\)
- C. \(10{x^4} + 7{x^3} - 5{x^2}\)
- D. \(10{x^4} - 7{x^3} - 5{x^2}\)