Question

Answer 1

làm đầy đủ các bước giùm e

Answer 2

1) \(2x^2-4x+2=2\left(x^2-2x+1\right)=2\left(x-1\right)^2\)

2: \(3x^3-6x^2y+3xy^2=3x\left(x^2-2xy+y^2\right)=3x\left(x-y\right)^2\)

3: \(5x^2+10xy+5y^2=5\left(x^2+2xy+y^2\right)=5\left(x+y\right)^2\)

4: \(2x^2-8=2\left(x^2-4\right)=2\left(x-2\right)\left(x+2\right)\)

5: \(8x^2-18=2\left(4x^2-9\right)=2\left(2x-3\right)\left(2x+3\right)\)

6) \(8x^2-4y=4\left(x^2-4y\right)\)

Answer 3

1) 2x²-4x+2=2x²-2x-2x+2=(2x²-2x)-(2x-2)=2x(x-1)-2(x-1)=(2x-2)(x-1)=2(x-1)²

2) 3x³-6x²y+3xy²=3x(x²-2xy+y²)=3x(x-y)²

3) 5x²+10xy+5y²=5(x²+2xy+y²)=5(x+y)²

4) 2x²-8=2(x²-4)=2(x-2)(x+2)

5) 8x²-18=2(4x²-9)=2(2x-3)(2x+3)

6) 8x²-4y=4(2x²-y)