Toán Lớp 8: Đặt nhân tử chung :
1) 3/5x^2y(y+3) – 3/5x^2(3+y
2) 8x(2x – 1) – 4y(1 – 2x)
3) x(2x+1) – 2x – 1
giúp mình trong tối nay
CHÍNH XÁC!!
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Toán Lớp 8: Đặt nhân tử chung :
1) 3/5x^2y(y+3) – 3/5x^2(3+y
2) 8x(2x – 1) – 4y(1 – 2x)
3) x(2x+1) – 2x – 1
giúp mình trong tối nay
CHÍNH XÁC!!
Comments ( 2 )
2) 8x(2x – 1) – 4y(1 – 2x)=8x(2x-1)+4y(2x-1)=4(2x-1)(2x+y)
3)x(2x+1) – 2x – 1=x(2x+1)-(2x+1)=(2x+1)(x-1)