Thực hiện phép tính:
a) \(5{{x}^{2}} \left( 3{{x}^{2}}4xy+ \text{ }4{{y}^{2}} \right) \)
b) \( \left( 6{{x}^{4}}{{y}^{3}}-9{{x}^{3}}{{y}^{2}}+15{{x}^{2}}{{y}^{2}} \right):3{{x}^{2}}y \)
c) \( \frac{4}{x-1}+ \frac{2}{1-x}+ \frac{x}{x-1} \)
d) \( \frac{3x}{2x-2y}: \frac{{{x}^{2}}}{x-y} \)
A.\(a,15{x^4}-20{x^3}y + 20{x^2}{y^2}\)
\(b, 2{x^2}{y^2}-3xy + 5y\)
\(c,\frac{{2 + x}}{{x - 1}}\)
\(d,\frac{3}{{2x}}\)
B.\(a,15{x^2}-20{x^3}y + 20{x^2}{y^2}\)
\(b, 2{x^2}{y^2}-3xy + 5y\)
\(c,\frac{{2 + x}}{{x - 1}}\)
\(d,\frac{3}{{2x}}\)
C.\(a,15{x^4}-20{x^3}y + 20{x^2}{y^2}\)
\(b, 2{x^2}{y^2}-3xy + 5y\)
\(c,\frac{{1 + x}}{{x - 1}}\)
\(d,\frac{3}{{2x}}\)
D.\(a,15{x^4}-20{x^3}y + 20{x^2}{y^2}\)
\(b, 2{x^2}{y^2}-3xy + 5y\)
\(c,\frac{{2 + x}}{{x - 1}}\)
\(d,\frac{1}{{2x}}\)
a) \(5{{x}^{2}} \left( 3{{x}^{2}}4xy+ \text{ }4{{y}^{2}} \right) \)
b) \( \left( 6{{x}^{4}}{{y}^{3}}-9{{x}^{3}}{{y}^{2}}+15{{x}^{2}}{{y}^{2}} \right):3{{x}^{2}}y \)
c) \( \frac{4}{x-1}+ \frac{2}{1-x}+ \frac{x}{x-1} \)
d) \( \frac{3x}{2x-2y}: \frac{{{x}^{2}}}{x-y} \)
A.\(a,15{x^4}-20{x^3}y + 20{x^2}{y^2}\)
\(b, 2{x^2}{y^2}-3xy + 5y\)
\(c,\frac{{2 + x}}{{x - 1}}\)
\(d,\frac{3}{{2x}}\)
B.\(a,15{x^2}-20{x^3}y + 20{x^2}{y^2}\)
\(b, 2{x^2}{y^2}-3xy + 5y\)
\(c,\frac{{2 + x}}{{x - 1}}\)
\(d,\frac{3}{{2x}}\)
C.\(a,15{x^4}-20{x^3}y + 20{x^2}{y^2}\)
\(b, 2{x^2}{y^2}-3xy + 5y\)
\(c,\frac{{1 + x}}{{x - 1}}\)
\(d,\frac{3}{{2x}}\)
D.\(a,15{x^4}-20{x^3}y + 20{x^2}{y^2}\)
\(b, 2{x^2}{y^2}-3xy + 5y\)
\(c,\frac{{2 + x}}{{x - 1}}\)
\(d,\frac{1}{{2x}}\)
Loga
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