C, 2(x-3)+4× d, 7-4(2x-5) e, 3(2x-1)-4(x+3) 03/11/2021 Bởi Liliana C, 2(x-3)+4× d, 7-4(2x-5) e, 3(2x-1)-4(x+3)
Đáp án: C, `2(x-3)+4x` `=2x-6+4x` `=6x-6` `d,7-4(2x-5)` `=7-8x+20` `=-8x+27` `e,3(2x-1)-4(x+3)` `=6x-3-4x-12` `=2x-15` Bình luận
C, 2(x-3)+4× =2x-6+4x=6x-6
d, 7-4(2x-5)=7-8x+20=27-8x
e, 3(2x-1)-4(x+3)=6x-3-4x-12=2x-15
Đáp án:
C, `2(x-3)+4x`
`=2x-6+4x`
`=6x-6`
`d,7-4(2x-5)`
`=7-8x+20`
`=-8x+27`
`e,3(2x-1)-4(x+3)`
`=6x-3-4x-12`
`=2x-15`