3 x 2 + 7 x 3 - 3 x 3 + 6 x 3 - 3 x 2
= 3 x ( 2 + 7 - 3 + 6 - 2 )
= 3 x ( 9 - 3 + 6 - 2 )
= 3 x ( 6 + 6 - 2 )
= 3 x 10
= 30
Tk mk nha !!!
\(3x^2+7x^3-3x^3+6x^3-3x^2\)
\(=\left(3x^2-3x^2\right)+\left(7x^3-3x^3+6x^3\right)\)
\(=0+10x^3=10x^3\)
Mong mình làm đúng yêu cầu
= 3 x ( 2 + 7 - 3 + 6 - 2 )
= 3 x 10
= 30
Tk mk nha
\(3\cdot2+7\cdot3-3\cdot3+6\cdot3-3\cdot2\)
\(=\left(3\cdot2-3\cdot2\right)+3\cdot\left(7-3+6\right)\)
\(=0+3\cdot10=30\)