D . x² + 4x + 4 = ( x + 2 )²

GOOD !!!

EXO

chữ nghĩa j đẹp thế ai luận nổi

theo mk là đúng r

1.at the perent , Tom wants a red ruler but his mother isn't buying

2. right now , he fells hungry . He needs something to eat

3. Where is ba ?

1. 3( x - 1 ) - 2 \(\left|x+3\right|\)

= 3x - 3 - 2 ( x + 3 )

= 3x - 3 - 2x - 6

= x - 9

2. \(\left|x-3\right|\) - \(\left|4x-1\right|\)

= x - 3 - ( 4x - 1 )

= x - 3 - 4x + 1 = - 3x - 2

x = 3