A. \(\frac{3}{{{x^2}}} + \frac{2}{{{x^4}}} - \frac{7}{{{x^6}}} + \frac{6}{{{x^{10}}}}\)
B. \( - \frac{3}{{{x^2}}} - \frac{2}{{{x^4}}} + \frac{7}{{{x^6}}} - \frac{6}{{{x^{10}}}}\)
C. \( - \frac{3}{{{x^2}}} - \frac{4}{{{x^3}}} + \frac{{21}}{{{x^4}}} - \frac{{30}}{{{x^6}}}\)
D. \(3 + \frac{1}{x} - \frac{7}{{3{x^2}}} + \frac{6}{{5{x^4}}}\)
A. -3+x2+x
B. -3(x2+x)
C. -3-x2-x
D. \( - 4{x^3} + \frac{1}{2}{x^2} + 5x + 12\)
A. \(\frac{{ - 2 - 6x}}{{{{\left( {3x - 2} \right)}^2}}}\)
B. \(\frac{{ - 2 - 6x}}{3}\)
C. \(\frac{{ - 9{x^2} + 12x - 11}}{{{{\left( {3x - 2} \right)}^2}}}\)
D. \(\frac{{ - 5 - 6x}}{{{{\left( {3x - 2} \right)}^2}}}\)
A. \(5{\left( {{x^3} - \frac{4}{{\sqrt x }}} \right)^4}\)
B. \(5{\left( {{x^3} - \frac{4}{{\sqrt x }}} \right)^4}\left( {3{x^2} - \frac{2}{{\sqrt x }}} \right)\)
C. \(5{\left( {{x^3} - \frac{4}{{\sqrt x }}} \right)^4}\left( {3{x^2} - \frac{2}{{x\sqrt x }}} \right)\)
D. \(5{\left( {{x^3} - \frac{4}{{\sqrt x }}} \right)^4}\left( {3{x^2} + \frac{2}{{x\sqrt x }}} \right)\)
A. 3a2-6at-15t2
B. 3a2-3t2
C. -6at-15t2
D. 3a2-3t2-6at-15t2
A. \(\frac{{2x}}{{{a^2} - {x^2}}}\)
B. \(\frac{{x\left( {2{a^2} - 3{x^2} - 1} \right)}}{{\left( {{a^2} - {x^2}} \right)\sqrt {{a^2} - {x^2}} }}\)
C. \(\frac{{2x}}{{\sqrt {2a - 2x} }}\)
D. \(\frac{{x\left( {2{a^2} - {x^2} + 1} \right)}}{{\left( {{a^2} - {x^2}} \right)\sqrt {{a^2} - {x^2}} }}\)
A. (2x+1)(3x-2)2
B. 2x2 (3x-2)2
C. (3x-2)(24x2+x-2)
D. 2x(2x+1)(3x-2)
A. \(\frac{{2x + 2}}{{3{x^2}}}\)
B. \(\frac{{ - 1}}{{{{\left( {x - 2} \right)}^2}}}\)
C. \(\frac{1}{{{{\left( {x - 2} \right)}^2}}}\)
D. \(\frac{{2x + 2}}{{{{\left( {{x^3} - 8} \right)}^2}}}\)
A. \(\left( { - \infty ; - \frac{1}{4}} \right]\)
B. \(\left( { - \infty ; - \frac{1}{4}} \right)\)
C. \(\left( { - \frac{1}{4}; + \infty } \right)\)
D. \(\left[ { - \frac{1}{4}; + \infty } \right)\)
A. \(\left( { - \infty ;2} \right) \cup \left[ {2; + \infty } \right)\)
B. \(\left( { - \infty ;2} \right)\)
C. \(\left[ {2; + \infty } \right)\)
D. \(\left( {2; + \infty } \right)\)
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