X-4XY+4Y²=()²1-8X+16X²=()²(1/2X-3Y)²=(3m-2n)²=4m²-4mn+n²=()²3x²-7x+2=(

问题描述:


X-4XY+4Y²=(    )²

1-8X+16X²=(    )²

(1/2X-3Y)²=

(3m-2n)²=

4m²-4mn+n²=(   )²

3x²-7x+2=(   )(   )


x²-4xy+4y²=(x-2y)²
1-8x+16x²=(1-4x)²
(1/2x-3y)²=1/4x²-3xy+9y²
(3m-2n)²=9m²-12mn+4n²
4m²-4mn+n²=(2m-n)²
3x²-7x+2=(3x-1)(x-2)