Question

phân tích đa thức thành nhân tử 

a, \(8xy^2-12x^2y+20xy\)

b,\(2x^2-50\)

c, \(x^2-6x+9-4y^2\)

 

Answer 1

a 8xy²-12x²y+20xy=4xy(2y-3x+5)

Answer 2

Answer 3

a,=\(4xy\left(2y-3x+5\right)\)

b,=\(2\left(x^2-25\right)=2\left(x+5\right)\left(x-5\right)\)

c,=\(\left(x-3\right)^2-\left(2y\right)^2=\left(x-3-2y\right)\left(x-3+2y\right)\)

Answer 4

2x²-50=2(x²-25)=2(x-5)(x+5)

Answer 5

x²-6x+9-4y²=(x²-6x+9)-(2y)²=(x-3)²-(2y)²=(x-3-2y)(x-3+2y)

Answer 6

a: \(8xy^2-12x^2y+20xy=4xy\left(2y-3x+5\right)\)

b: \(2x^2-50=2\left(x-5\right)\left(x+5\right)\)

c: \(x^2-6x+9-4y^2=\left(x-3-2y\right)\left(x-3+2y\right)\)