Phân tích các đa thức sau thành nhân tử:
a) \(5{{x}^{2}}y-10x{{y}^{2}}\)
b) \(3\left( x\text{ }+\text{ }3 \right)\text{ }{{x}^{2}}+9\)
A.\(a,5xy\left( {x-2y} \right)\)
\(b,\left( {x - 3} \right)\left( {6-x} \right)\)
B.\(a,5xy\left( {x-2y} \right)\)
\(b,\left( {x + 3} \right)\left( {6-x} \right)\)
C.\(a,5xy\left( {x+2y} \right)\)
\(b,\left( {x + 3} \right)\left( {6-x} \right)\)
D.\(a,5xy\left( {x-y} \right)\)
\(b,\left( {x + 3} \right)\left( {6-x} \right)\)
a) \(5{{x}^{2}}y-10x{{y}^{2}}\)
b) \(3\left( x\text{ }+\text{ }3 \right)\text{ }{{x}^{2}}+9\)
A.\(a,5xy\left( {x-2y} \right)\)
\(b,\left( {x - 3} \right)\left( {6-x} \right)\)
B.\(a,5xy\left( {x-2y} \right)\)
\(b,\left( {x + 3} \right)\left( {6-x} \right)\)
C.\(a,5xy\left( {x+2y} \right)\)
\(b,\left( {x + 3} \right)\left( {6-x} \right)\)
D.\(a,5xy\left( {x-y} \right)\)
\(b,\left( {x + 3} \right)\left( {6-x} \right)\)
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Hóa Học lớp 12
